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Stormyrbakken, Christer. "Automatic compensation for inaccuracies in quadrature mixers." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/2334.
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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2005.In an ideal software defined radio (SDR), all parameters are defined in software, which means the radio can be reconfigured to handle any communications standard. A major technical challenge that needs to be overcome before this SDR can be realised, is the design of an RF front end that can convert any digital signal to an analogue signal at any carrier frequency and vice versa. Quadrature mixing (QM) can be used to implement and analogue front end, that performs up and down conversion between the complex baseband centred around 0 Hz and the carrier frequency. By separating the tasks of frequency conversion and digital-to-analogue conversion, the latter can be performed at a much lower sample rate, greatly reducing the demands on the hardware. Furthermore, as QM can handle variable carrier frequency and signal bandwidth, this can be done without sacrificing reconfigurability. Using QM as an analogue front end may therefore be the solution to implementing SDR handsets.
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Opolon, David C. (David Cyrille). "Improving product availability in hospitals : the role of inventory inaccuracies." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62868.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Engineering Systems Division, 2010.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. [184]-193).
All players in the healthcare industry face increasing public and political pressure to improve quality of care and control costs. Hospitals, on the frontline of this challenge, face nursing shortages and financial constraints. Survey data indicate that missing medication and supplies interrupt nurses more than twice per shift, increasing costs and putting patients at risk. These challenges persist even though over 72% of U.S. hospitals have deployed Automated Dispensing Machines (ADMs), electronic cabinets that automate inventory management processes and improve product availability. This research investigates the role of inventory inaccuracies, i.e., mismatches between book inventory and physical inventory on hand, as drivers of product availability in hospitals. The research objectives are three-fold: (1) characterize the sources of inventory inaccuracies prevalent in a hospital context; (2) quantify the impact of inventory inaccuracies on product availability and performance metrics; and (3) identify and evaluate practical strategies that hospitals can use to improve product availability by reducing and mitigating inventory inaccuracies. This thesis views the hospital supply chain as a socio-technical system and addresses the research questions using a multilevel, multi-method approach. The research is empirically grounded by the case study of Lambda, a New England area hospital that provided qualitative and high-frequency transactional data from its network of 108 ADMs that stock over 21,000 product-location combinations. First, by classifying sources of inventory inaccuracies this thesis identifies Imperfect Demand Recording as a hospital-specific source of such inaccuracies. Recording Accuracy is proposed as a metric of user behavior at product and location levels, and reveals that between five and thirty percent of product usage is not recorded. Then, a single-product Discrete-Event Simulation (DES) model shows that Imperfect Demand Recording causes large reductions in availability unless mitigated by frequent and consistent (i.e., equally-spaced) inventory counts, and that service level estimates provided by ADMs can have a large, optimistic bias. Assuming that count timing is independent of inventory state, an analytical model provides a closed-form generalization of the simulation results and shows that variability in cycle count has a nonlinear and substantial effect, causing 35% of counts performed at Lambda to be ineffective. Finally, a sequential and iterative framework integrating the managerial implications of these contributions is proposed.
by David C. Opolon.
Ph.D.
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McIndoo, Julie, Pooja Mehta, and Manasa Murthy. "Inaccuracies in the Second Season of the Medical Drama, House, MD." The University of Arizona, 2010. http://hdl.handle.net/10150/623788.
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Class of 2010 AbstractOBJECTIVES: The purpose of this project was to analyze the accuracy of season two, episodes 13-‐24 of the popular medical drama, House, MD. METHODS: This study was a descriptive retrospective analysis of the second half of season two of House, MD. The accuracy of the presenting signs and symptoms, diagnosis, and treatment in each episode was rated on a scale of one to four. A rating of one described a correct and usual representation. A rating of two described a correct but somewhat unusual representation. A rating of three described a correct but extremely unusual representation. A rating of four described an incorrect representation. Each researcher independently rated the episodes, and then a collaborative rating was agreed upon by all researchers. RESULTS: Results of the ANOVA test demonstrated a statistically significant difference between the three dependent variables (p=0.003). The Tukey post-‐hoc test confirmed a significant difference between the accuracy of treatment when compared with signs and symptoms (p=0.003), and with diagnosis (p=0.022). The average rating for the treatment variable was 1.50 (±0.707), whereas the average ratings for the signs and symptoms and diagnosis variables were 2.80 (±0.919) and 2.50 (±0.707), respectively. CONCLUSIONS: The treatments presented in the last twelve episodes of season two of House, MD were more accurate than both the presenting signs and symptoms and the diagnosis.
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Ball, Nicole, Tracy Nguyen, and Annie Walenga. "Inaccuracies in the Second Season of the Medical Drama, House, MD." The University of Arizona, 2009. http://hdl.handle.net/10150/623968.
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Class of 2009 AbstractOBJECTIVES: The purpose of this work was to quantify the magnitude of factual inaccuracies in the first twelve episodes of the second season of the medical drama, House, MD. METHODS: This study was a descriptive retrospective evaluation of the first twelve episodes in the second season of the popular television show, House, MD. The degree of accuracy of the signs and symptoms (presentation), diagnosis, and treatment for the one major disease portrayed in each show was rated on a scale of one to four. Each researcher evaluated these ratings independently, and after subsequent collaborative discussion, a combined rating was determined for all the data. RESULTS: Both a three-way ANOVA and Kruskal-Wallis data analyses found significance among the data. The Tukey HSD post hoc test revealed a significant difference between the accuracy of signs and symptoms to treatment variables (p = 0.045). Analysis by the Mann-Whitney U test also determined that a significant difference was evident between the accuracy of signs and symptoms when compared with treatment (p = 0.022). CONCLUSIONS: The treatments presented in the twelve episodes evaluated were determined to be more accurate than the show's description of the patient's presenting signs and symptoms.
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Schiefer, Jennifer, Alyssa Shanosky, and Sampson Tong. "Inaccuracies in the Third Season of the Medical Drama, House, MD." The University of Arizona, 2011. http://hdl.handle.net/10150/623529.
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Class of 2011 AbstractOBJECTIVES: The purpose of this study is to assess the accuracy of the presentation, diagnostic procedures, and treatment of the main disease in each of the first twelve episodes of the third season of the medical drama House, MD. METHODS: The study is a descriptive retrospective evaluation of the first twelve episodes of season three of the medical drama House, MD. The accuracy of the clinical presentation, diagnostic procedures, and treatment in each episode was rated on a scale of one to four. A rating of one described a correct and usual representation. A rating of two described a correct but somewhat unusual representation. A rating of three described a correct but extremely unusual representation. A rating of four described an incorrect representation. Each of three researchers independently rated the episodes, and then the researchers agreed upon a collaborative rating for each category. RESULTS: Results of the ANOVA test did not show statistical significance between the three dependent variables (p = 0.25). Additionally, a Tukey HSD post-hoc test did not reveal a statistical significant difference between the ratings for the presentation, diagnosis, and treatment. CONCLUSION: In the first twelve episodes of season three of House, MD, there was no difference between the accuracy of the treatment and diagnosis when compared to the signs and symptoms of each episode.
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Edgar, Christina Louise. "A study of the decay τ → π⁻ π⁻ π⁺ π⁰ π⁰ ν(τ) using the BaBar detector." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496323.
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Myers, Seth Wanta Wayne. "A quantitative content analysis of errors and inaccuracies in Missouri newspaper information graphics." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6570.
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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on November 19, 2009). Thesis advisor: Dr. Wayne Wanta. Includes bibliographical references.
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Sadough, Seyed Mohammad Sajad. "Ultra wideband OFDM systems : channel estimation and improved detection accounting for estimation inaccuracies." Paris 11, 2008. http://www.theses.fr/2008PA112001.
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Les travaux présentés dans cette thèse se situent dans le cadre de la transmission OFDM appliqué au contexte Ultra Large Bande (UWB). L’objectif principal va être l’estimation du canal de propagation et la conception de récepteurs en prenant en compte la connaissance non idéale du canal. On propose d’abord une approche semi-aveugle d’estimation du canal qui bénéficie de la parcimonie du canal UWB dans le domaine des ondelettes pour réduire le nombre de paramètre à estimer. Ensuite, on propose des structures de réception itérative où la conception du détecteur prend en compte la présence des erreurs d’estimation de canal. La détection au sens maximum de vraisemblance (MV) est améliorée en modifiant sa métrique de détection pour le cas où le canal est estimé de manière imparfaite. La métrique MV améliorée ainsi obtenue nous permet de remettre en question le schéma de détection de type turbo MAP dans un contexte BICM et l’adapter à la connaissance imparfaite du canal. De plus, on dérive les débits de coupure atteignables (achievable outage rates) avec le détecteur MV améliorée ou un détecteur MV désadapté (utilisant les estimés de canal comme s’il s’agissait des vraies) qu’on comparera avec un détecteur théorique défini comme étant le meilleur récepteur possible en présence d’erreurs d’estimation de canal. Enfin, un récepteur itératif à complexité réduite basé sur un filtrage MMSE et l’annulation parallèle d’interférence (turbo-PIC) est introduit et ensuite adapté à la connaissance imparfaite du canal. Il est important de souligner que les améliorations proposées dans cette thèse n’impliquent pas une augmentation sensible de la complexité au niveau du récepteurThe aim of this thesis is to study the problem of iterative data detection in an ultra wideband (UWB) OFDM system, where the receiver disposes only of an imperfect (and possibly poor) estimate of the unknown channel parameters. First, we propose an efficient receiver jointly estimating the channel and the transmitted symbols in an iterative manner. This receiver is based on a wavelet representation of the unknown channel and exploits the sparseness property of UWB channels in the wavelet domain to reduce the receiver’s computational complexity. Second, we rely on the statistics characterizing the quality of the channel estimation as a mean to integrate the imperfect channel knowledge into the design of iterative receivers. In this way, we formulate an improved maximum likelihood (ML) detection metric taking into account the presence of channel estimation errors. A modified iterative MAP detector is derived by an appropriate use of this metric. The results are compared to those obtained by using the classical mismatched ML detector, which uses the channel estimate as if it was the perfect channel. Furthermore, we calculate the achieved throughputs associated to both improved and mismatched ML detectors, in terms of achievable outage rates. Finally, we propose an improved low-complexity iterative detector based on soft parallel interference cancellation and linear MMSE filtering where we takes into account the presence of channel estimation errors in the formulation of the detector. The important point is that the performance improvements reported in this thesis are obtained while imposing practically no additional complexity to the receiver
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Wustrich, Andreas Rolf. "Enhancement of CNC controls to compensate the inaccuracies due to the working forces." Thesis, University of the West of Scotland, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730023.
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Couvelis, Frank Alan. "Apparent water loss due to consumer meter inaccuracies in selected areas of South Africa." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/14360.
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Apparent losses form an important component of the International Water Association's water balance. While apparent losses look like real losses to a municipality, this is not actually the case. The main components of apparent losses are water meter under-registration and unauthorised consumption. Water utilities in South Africa and internationally are becoming increasingly aware of the importance of good meter management practices based on the vast amount of literature published and work done by municipalities in recent years. Water meters are known to increasingly under-register as they age and register consumption. They register consumption the least accurate at low flowrates and their accuracy in this range deteriorates the fastest. This study investigates the extent of the apparent loss problem in selected areas of South Africa due to meter inaccuracy in a number of different ways, including an inspection of new residential consumer meters, interrogation of a metering database, flow logging of domestic consumers with and without an Unmeasured Flow Reducer (UFR) installed and a compilation of reports on bulk consumer meters. It was found that 16 % of 402 properties investigated in the City of Cape Town had an on-site leakage and their median flowrate was 10 litres/ hour. In Bloemfontein, it was found that 28 % of the 167 properties investigated had an on-site leakage with a median flowrate of 20 l/h. An investigation into the performance of 15 mm positive displacement meters based on eThekwini's water meter database showed that the under-registration from these meters increase by 0.36 %-points per year and 0.9 %-points per 1000 kL registered. Flow logging of domestic consumers with and without UFRs, showed that there was no genuine improvement in meter accuracy with meters that had UFRs installed in-line with it. However, there were only 8 properties (3 of which having a UFR installed) in the study that were investigated and no statistical conclusive conclusions could be made. Bulk meter audits in Ekurhuleni and Tshwane showed apparent losses of 18 % and 19 % respectively.
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Aragon, Bernadette, and Erica Luiten. "Inaccuracies in the Second Half of Season Five of the Medical Drama, House, MD." The University of Arizona, 2012. http://hdl.handle.net/10150/623583.
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Class of 2012 AbstractSpecific Aims: To assess the accuracy of the presenting signs and symptoms, diagnostic procedures, and treatments presented in the last twelve episodes of season five of the popular medical drama, House, MD. Methods: A descriptive retrospective evaluation of the accuracy and inaccuracies of episodes 13 to 24 in season five of the television series House, MD. The accuracy of the presenting signs and symptoms, diagnostic procedures, and treatment in each episode was rated on a scale of one to four. A rating of one described a correct and usual representation. A rating of two described a correct but somewhat unusual representation. A rating of three described a correct but extremely unusual representation. A rating of four described an incorrect representation. Each researcher independently rated the episodes, and then a collaborative rating was agreed upon by both researchers. Main Results: Results of the ANOVA test demonstrated a statistically significant difference between the three dependent variables (p=0.002). The Tukey HSD post-hoc test confirmed a significant difference between the accuracy of treatment when compared with signs and symptoms (p=0.012), and with diagnostic procedures (p=0.002). The average rating for the treatment variable was 1.58 (±0.9), whereas the average ratings for the signs and symptoms and diagnosis variables were 2.75 (± 0.754), and 3 (±1.128), respectively. Conclusions: The treatments presented in the last twelve episode of season five of House, MD were more accurate than both the presenting signs and symptoms and the diagnosis.
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Aragon, Bernadette, Erica Luiten, and David Apgar. "Inaccuracies in the Second Half of Season Five of the Medical Drama, House, MD." The University of Arizona, 2012. http://hdl.handle.net/10150/614453.
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Class of 2012 AbstractSpecific Aims: To assess the accuracy of the presenting signs and symptoms, diagnostic procedures, and treatments presented in the last twelve episodes of season five of the popular medical drama, House, MD. Methods: A descriptive retrospective evaluation of the accuracy and inaccuracies of episodes 13 to 24 in season five of the television series House, MD. The accuracy of the presenting signs and symptoms, diagnostic procedures, and treatment in each episode was rated on a scale of one to four. A rating of one described a correct and usual representation. A rating of two described a correct but somewhat unusual representation. A rating of three described a correct but extremely unusual representation. A rating of four described an incorrect representation. Each researcher independently rated the episodes, and then a collaborative rating was agreed upon by both researchers. Main Results: Results of the ANOVA test demonstrated a statistically significant difference between the three dependent variables (p=0.002). The Tukey HSD post-hoc test confirmed a significant difference between the accuracy of treatment when compared with signs and symptoms (p=0.012), and with diagnostic procedures (p=0.002). The average rating for the treatment variable was 1.58 (0.9), whereas the average ratings for the signs and symptoms and diagnosis variables were 2.75 ( 0.754), and 3 (1.128), respectively. Conclusions: The treatments presented in the last twelve episode of season five of House, MD were more accurate than both the presenting signs and symptoms and the diagnosis.
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Rekik, Yacine. "The Impact of the RFID Technology in Improving Performance of Inventory Systems subject to Inaccuracies." Phd thesis, Ecole Centrale Paris, 2006. http://tel.archives-ouvertes.fr/tel-00222915.
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Contrairement à un système d'identification plus traditionnel tel que le code à barres, la nouvelle technologie RFID (Radio Frequency IDentification) utilise des ondes radio fréquence pour transmettre des données entre une étiquette et un lecteur pour pouvoir identifier, localiser ou suivre une entité dans une chaîne d'approvisionnement. Cette propriété lui procure certains avantages (facilité d'accès à l'information, suivi continu, amélioration de l'exactitude des données, détection du vol et de la contrefaçon, etc..) par rapport à d'autres systèmes d'identification et de capture de données. Nous partons du constat que l'utilisation de cette nouvelle technologie permettra aux acteurs de la chaîne logistique de pouvoir partager une information de meilleure qualité, plus exhaustive et fiable concernant le flux physique et le suivi de la localisation produits. Or, l'hypothèse implicite considérée dans la plupart des modèles classiques de gestion de stock est que l'on a une connaissance parfaite du flux entrant et sortant. L'objectif de recherche sera d'intégrer dans ces modèles des dégradations venant fausser le flux nominal et d'en analyser les conséquences (en termes de coût additionnel). Un accent fort sera mis sur le développement de solutions combinant efficacité et simplicité. L'accent sera mis aussi sur le mode de partage du coût de cette technologie entre plusieurs acteurs de la chaîne logistique : serait-il mieux de partager les bénéfices de cette technologie dans un environnement de coordination ou dans un environnement de compétitivité entre acteurs? Les résultas de cette thèse porte sur l'élaboration de modèles théoriques -de type gestion de stock – concernant la production, la distribution et l'approvisionnement dans une chaîne logistique et faisant intervenir et le coût et les gains potentiels de cette nouvelle technologie d'identification automatique.
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Blackburn, Shanelle, Ann Kuharevicz, and Andrea Norcross. "Inaccuracies in the Second Half of the Third Season of the Medical Drama, House, MD." The University of Arizona, 2011. http://hdl.handle.net/10150/623525.
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Class of 2011 AbstractOBJECTIVES: To evaluate the degree of accuracy of the information relevant to signs and symptoms, diagnostic procedures used to establish the final diagnosis, and appropriateness of treatment for the last 12 episodes of the 3rd season of the television show, House, MD. METHODS: Twelve episodes were reviewed by three evaluators and the patient’s signs and symptoms, the diagnostic procedures used, and the treatment of the final diagnosis for each episode were recorded and rated based on accuracy. After each evaluator had rated each variable in each episode independently, the ratings were compared and a final rating for each variable was determined. RESULTS: The overall mean rating for signs and symptoms was 2.46. The overall mean rating for diagnostic procedures was 2.38. The overall mean rating for treatment was 1.77. All of these ratings would correlate to a correct, but somewhat unusual presentation. The ANOVA analysis found no statistically significant difference between groups (p=0.078). CONCLUSION: The signs and symptoms, diagnostic procedures, and treatments in the episodes of the second half of season three of House, MD were all portrayed in a manner that was accurate, but with a somewhat unusual presentation.
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DeBaca, Sarena, Clinton Napier, David Apgar, and Edward Armstrong. "Inaccuracies in the Second Half of the First Season of the Medical Series, House M.D." The University of Arizona, 2014. http://hdl.handle.net/10150/614207.
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Class of 2014 AbstractSpecific Aims: To assess the accuracy of the presentation (signs and symptoms), the diagnostic procedures used to arrive at the final diagnosis, and the ultimate treatment performed in each of the last ten episodes of the first season of the television medical drama, House MD. Methods: A descriptive retrospective analysis of the accuracies and inaccuracies of episodes 13 to 22 in season one of the television series House, MD. The accuracy of each episode in regards to the presenting signs and symptoms, diagnostic procedures, and treatment was rated on a scale of one to four: 1) Correct and usual representation; 2) Correct but somewhat unusual representation; 3) Correct but extremely unusual representation; 4) Incorrect representation. Both researchers evaluated each episode on the above criteria independently, and a cooperative and final rating was chosen upon. Main Results: Results of the ANOVA test did not demonstrate a statistically significant difference between the three variables (p=0.581). A Tukey HSD post-hoc test was unable to confirm if there was a significant difference between the the three variables. The average rating for the presenting signs and symptoms was 2.50 (±0.707), and 2.30 (±1.160) and 2.10 (±0.568) for diagnostic procedures and treatment, respectively. Conclusion: There was no difference in accuracies between the presenting signs and symptoms, diagnostic procedures, or treatments in the last ten episodes of the first season of House,MD.
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Nye, Adam, Tracy Post, Elisa Vomocil, David Apgar, and Edward Armstrong. "Accuracy of House, MD Season Five Episodes 1-12." The University of Arizona, 2012. http://hdl.handle.net/10150/614522.
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Class of 2012 AbstractSpecific Aims: This study was performed to assess the accuracy of the presenting signs and symptoms, diagnostic procedures, and treatments depicted in episodes one through twelve of the fifth season of House, MD. Methods: This study was a descriptive, retrospective evaluation of the accuracy of the first twelve episodes of the fifth season of House, MD. Dependent variables in this study were presenting signs and symptoms, diagnostic procedures, and treatment of the final diagnosis for the primary patient case. A rating of one to four was assigned to each variable, with one being most accurate and four being inaccurate. Statistical analysis consisted of ANOVA and Tukey HSD post-hoc test Main Results: The signs and symptoms had a mean of 2.42 ± 0.669 (95% CI 1.99 to 2.84). The diagnostic tests had a mean of 2.42 ± 1.084 (95% CI 1.73 to 3.11). The treatment had a mean of 1.42 ± 0.9 (95% CI 0.84 to 1.99). ANOVA showed a statistically significant difference among the accuracy ratings of the groups (p = 0.013). Tukey HSD did not show a significant difference between the accuracy of the signs and symptoms and diagnostic tests (p = 1). The test did reveal a statistically significant difference between accuracy of treatment and both the signs and symptoms (p = 0.027) and diagnostic tests (p = 0.027). Conclusions: The treatments shown in House, MD, season five, episodes one through twelve are significantly more accurate than both the diagnostic tests and the presenting signs and symptoms.
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Wilcox, Elizabeth Sarah. "Does "misinformation" matter? Exploring the roles of technical and conceptual inaccuracies in a deliberative public engagement on biobanks." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/17436.
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Science is increasingly affecting populations across the globe, and individuals and communities are growing more and more aware of the possible benefits and harms created by new technologies and changes in related policies. Prompted by inadequacies in representation, legitimacy, and trust, there is a need to increase public involvement in decisions regarding the development and implementation of science and technology. Due to claims that the public lacks the necessary knowledge to participate in these democratic processes, this thesis explores whether or not the presence of misinformation during deliberation undermines the usefulness of engaging publics for policy advice.
The BC Biobank Deliberation brought together twenty-one individuals from across the province to explore the values and interests that ought to guide the governance of biobanks (repositories of annotated human biological materials often used as resources for research), and to test and evaluate a model for involving diverse publics in policy-making. As information related to biobanks is challenging to capture and disseminate, technical inaccuracies – those resulting from factual scientific or social information related to biobanking – and conceptual inaccuracies – those resulting from information considered to be outside the scope of biobanking, such as linking activities which are not facilitated by the existence of biobanks, to biobanks (e.g. cloning) – arose during deliberations.
The analysis of this misinformation in the BC Biobank Deliberation seems to indicate that technical and conceptual inaccuracies play four main roles in deliberation: 1) no effect; 2) stall; 3) distraction; and 4) development. In general, when an overview of the scientific and social information related to the topic is provided during an engagement activity, participants who had little or no knowledge of the subject prior to being informed were able to deliberate on a variety of issues related to biobank governance. Findings indicate that in certain instances misinformation may help to develop deliberation, moving participants towards decision points related to biobank governance. This helps to show that scientific knowledge is not necessarily a prerequisite to participating in decision-making processes.
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Truong, Annie, and Quyen Dao. "Evaluation of Recommendations made on The Dr. Oz Show from the first 30 episodes of season 5." The University of Arizona, 2017. http://hdl.handle.net/10150/624168.
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Class of 2017 AbstractObjectives: To assess the clinical evidence that supports recommendations made on The Dr. Oz Show Methods: This descriptive, retrospective study determined if recommendations made during the first 30 episodes from season 5 of The Dr. Oz Show were supported, not supported, or no literature evidence could be found. The 30 episodes chosen were aired between 4/25/2014 and 7/29/2014. The literature evaluated was from among three databases: PubMed, Embase and Natural Medicines. A total of 82 specific recommendations were assessed. The recommendations included those concerning medications, dietary supplements, medical devices, food and cosmetic products. Two investigators independently researched the literature evidence for each recommendation using a point-grading system. A consensus of agreement was reached for the evaluation of the accuracy for each recommendation. Results: A total of 77 recommendations from among the 30 chosen episodes met inclusion criteria and were therefore analyzed. Among the 77 analyzed recommendations, 30 (38.9%) of them were supported by evidence, 6 (7.7%) of them were not supported by evidence and 41 (53.4%) of them had no evidence found. Conclusions: Overall, less than half of the recommendations in the first 30 episodes of season 5 on The Dr. Oz Show were supported by evidence.
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Ham, Rosalie, and rosalieh@optusnet com au. "Representations of men and women of the bush in Australian fiction." RMIT University. Creative Media, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080110.100527.
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At the heart of this exegesis is the city-bush gap and the rivalry and stereotypes that gap has generated. I acknowledge how and why our national identity evolved from the writing of the 1890s but I argue that most current artists, particularly novelists, have failed to incorporate the ongoing cultural, societal and industrial changes that have occurred since, particularly in the last thirty years. I assert that the majority of artists still refer to and draw inspiration from established, inaccurate myths and stereotypes rather than the bush and Australian characters of today. Through examining three texts, Kate Grenville's The Idea of Perfection (Picador, Sydney, 1999), Christos Tsiolkas's Loaded (Random House, Sydney, 1995) and Silences Long Gone (Picador, Sydney, 1998) by Anson Cameron, I also point out how most artists in general have failed to keep pace with changes in the bush city cross-culture. My exegesis attempts to give an account of some deficiencies in contemporary Australian literature. In the creative component of this project, Summer at Mount Hope (Duffy and Snellgrove, Sydney, 2005), I write, as did Anson Cameron in his book, Silences Long Gone, (Pan Macmillan, 1998) of a bush (in 1894) where city and bush rely on each other and technology pushes into the bush uniting city and bush, thus enhancing the economy, the cross cultural interdependence and advancing the commonality between the two. I replace stereotypical characters with less predictable characters whose traits sit easily in either bush or city culture and skew the Traditionalist role of bush and city.
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Fox-Murphy, Adrian Francis. "Development of a novel alignment system for the ATLAS Inner Detector and an investigation of the effect of alignment inaccuracies on tracker performance." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360255.
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Book, Oscar, Isac Falkenberg, and Oscar Gunnarsson. "Orsaker till saldodifferenser inom fordonsindustrin." Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-24023.
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Den här uppsatsens syfte var att analysera saldodifferenser på Haldex. För att besvara detta syfte genomfördes en kvalitativ metod i form av intervjuer, observationer samt en enkät. Detta empiriska material analyserades sedan med hjälp av relevanta teorier som berörde inventory management, RFID teknik och anställdas beteende. Det vi kom fram till var att saldodifferenserna på Haldex beror på både mänskliga och teknologiska fel. De mänskliga felen beror på en bristande utbildning i det nya affärssystemet som implementerades för drygt ett år sedan. De teknologiska felen beror på svaga kriterier vid klassificering av sitt lager. Idag använder sig Haldex av ett det vanligaste kriteriet vid en ABC klassificering, nämligen värdet på produkten. Vi föreslår att det bör kompletteras med ledtiden och betydelsen av produkten för att ge ett mer rättvisande klassificering på lagret. För att minska felen som uppstår i lagret föreslår vi att Haldex bör implementera RFID teknologin på sina A produkter.The purpose of this study was to analyze inventory inaccuracy at Haldex. In order to answer the purpose a qualitative method in the form of interviews, a survey and observations were conducted. The empirical material was then later analyzed with relevant theories regarding inventory inaccuracy. This study found that the inventory inaccuracy at Haldex mainly was a result of human errors combined with technological errors. The human errors came from a lack of knowledge in the company's ERP system AX12. The interviews found that the system had been implemented too fast and without relevant training, which later resulted in employees not knowing how to properly use it. The technological errors came from the company's weak criteria’s when it came to classify the inventory. Today Haldex uses an ABC-classification that is based on the products value, this essay suggests that lead time and importance of the product should be added. In order to minimize inventory errors this essay suggest that RFID technology needs to be added to the company's A-products.
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Sahin, Evren. "A qualitative and quantitative analysis of the impact of the Auto ID technology on supply chains." Phd thesis, Ecole Centrale Paris, 2004. http://tel.archives-ouvertes.fr/tel-00110784.
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Aranda, Veramendi Jackeline Shane, and Prado Devy Gómez. "La evaluación de las incorrecciones identificadas durante la realización de la auditoria (NIA 450) y su impacto en el sistema de control interno en el sector de cooperativas de ahorro y crédito asociadas a la FENACREP en los distritos de Jesús María y Pueblo Libre, 2017." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2018. http://hdl.handle.net/10757/625943.
Full textAbstract:
La presente investigación tiene como objetivo demostrar la importancia de la evaluación de las incorrecciones identificadas durante la realización de la auditoria (NIA 450) y su impacto en el sistema de control interno en el sector de las cooperativas de ahorro y crédito asociadas a la FENACREP en los distritos de Jesús maría y pueblo libre.
Para el desarrollo del presente trabajo, hemos realizado una investigación cualitativa y cuantitativa. Por ello, se utilizó encuestas aplicadas a los Gerentes Financieros o auditores internos de las cooperativas de ahorro y crédito que se encuentran ubicadas en el área de nuestro punto de investigación y entrevistas para recopilar las opiniones de los Auditores Financieros de las principales firmas de gran reconocimiento en el país.
Asimismo, desarrollamos un caso integrador donde se evaluó el efecto de las incorrecciones identificadas y su impacto en el sistema de control interno de las cooperativas de ahorro y crédito.
Los resultados de la investigación demuestran que las cooperativas de ahorro y crédito si tienen un impacto significativo después de realizada la auditoría externa, debido a los cambios positivos que se generan en la obtención de mejores procedimientos y controles.
Todo ello, nos ha permitido concluir que la evaluación de las incorrecciones identificadas durante la auditoria tiene influencia en el sistema de control interno, ya que, después de pasar por un proceso de auditoría externa e identificar las falencias, estos han generado un impacto significativo positivo sobre el control interno, debido a que, las áreas en las que se identificaron los errores pudieron ser analizadas y evaluadas, tanto la reestructuración como la implantación de mejores controles internos para la compañía.This research aims to demonstrate the importance of the evaluation of the improprieties identified during the completion of the audit (ISA 450) and their impact on the system of internal control in the field of savings and credit cooperatives associated with FENACREP district of Jesus Maria and Pueblo Libre. For this reason, then for the development of this work, we conducted a qualitative and quantitative research. For this reason, we used surveys applied to the financial managers of cooperatives such as credit unions, which are located in the area of our point of research and interviews to collect the views of the financial auditors of the major auditing firms of the world. In addition, we develop a case Integrator where evaluated the effect of the improprieties identified and its impact on the system of internal control of savings and credit cooperatives. The results of the investigation show that the cooperatives of savings and credit if they have a significant impact after the external audit, due to the positive changes they generate in obtaining better procedures and controls. All, has allowed us to conclude that the assessment of the improprieties identified during the audit has influence in the internal control system, because after going through an audit process and identify the flaws, these have generated a Significant impact on internal control because areas identified with errors were able to analyze and evaluate the restructuring and implementation of better internal controls for the company.
Tesis
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Kinnaert, Xavier. "Data processing of induced seismicity : estimation of errors and of their impact on geothermal reservoir models." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAH013/document.
Full textAbstract:
La localisation de séismes induits ainsi que les mécanismes au foyer associés sont des outils fréquemment utilisés afin, entre autres, d’imager la structure d’un réservoir. Cette thèse présente une technique permettant de quantifier les erreurs associées à ces deux paramètres. Par cette méthode, incertitudes et imprécisions sont distinguées. La méthode a été appliquée aux sites de Soultz et de Rittershoffen pour étudier l’impact de plusieurs critères sur la localisation de la sismicité induite. Ainsi, il a été montré que l’utilisation de capteurs installés profondément dans des puits et qu’une bonne couverture sismique azimutale réduit sérieusement les incertitudes de localisation. Les incertitudes du modèle de vitesse, représentées par une distribution gaussienne des modèles avec un écart de 5% autour du modèle de référence, multiplient les incertitudes de localisation par un facteur 2 à 3. Des simplifications utilisées pour le calcul ou une mauvaise connaissance du milieu peuvent mener à des imprécisions de l’ordre de 10% spatialement non isotropes. Ainsi, les structures du sous-sol peuvent être déformées dans les interprétations. L’application d’un tir de calibration peut néanmoins corriger ce fait en grande partie. L’étude d’erreurs associées aux mécanismes au foyer ne semble cependant pas conduire aux mêmes conclusions. Le biais angulaire peut certes être augmenté par l’omission de la faille dans le modèle de vitesse, mais dans plusieurs cas il est le même que dans le cas idéal voire diminué. En outre, une meilleure couverture sismique améliorerait toujours le mécanisme au foyer obtenu. Ainsi, il n’est pas conseillé d’imager un réservoir en n’utilisant que la localisation de séismes, mais une combinaison de plusieurs paramètres sismiques pourrait s’avérer efficace. La méthode appliquée dans le cadre de cette thèse pourra servir pour d’autres sites à condition d’en avoir une bonne connaissance a prioriInduced seismicity location and focal mechanisms are commonly used to image the sub-surface designin reservoirs among other tasks. In this Ph.D. the inaccuracies and uncertainties on earthquake location and focal mechanisms are quantified using a three-step method. The technique is applied to the geothermal sites of Soultz and Rittershoffen to investigate the effect of several criteria on thee arthquake location. A good azimuthal seismic coverage and the use of seismic down-hole sensors seriously decrease the location uncertainty. On the contrary, velocity model uncertainties, represented by a 5% Gaussian distribution of the velocity model around the reference model, will multiply location uncertainties by a factor of 2 to 3. An incorrect knowledge of the sub-surface or the simplifications performed before the earthquake location can lead to biases of 10% of the vertical distance separating the source and the stations with a non-isotropic spatial distribution. Hence the sub-surface design maybe distorted in the interpretations. To prevent from that fact, the calibration shot method was proved to be efficient. The study on focal mechanism errors seems to lead to different conclusions. Obviously, the angular bias may be increased by neglecting the fault in the velocity. But, it may also be the same as or even smaller than the bias calculated for the case simulating a perfect knowledge of the medium of propagation. Furthermore a better seismic coverage always leads to smaller angular biases. Hence,it is worth advising to use more than only earthquake location in order to image a reservoir. Other geothermal sites and reservoirs may benefit from the method developed here
Die korrekte Lokalisierung von induzierter Seismizität und den dazugehörigen Herdflächenlösungensind sehr wichtige Parameter. So werden zum Beispiel die Verteilung der Erdbeben und die Orientierung ihrer Herdflächenlösungen dazu benutzt um in der Tiefe liegende Reservoirs zulokalisieren und abzubilden. In dieser Doktorarbeit wird eine Technik vorgeschlagen um diemethodisch bedingten Fehler zu quantifizieren. Mit dieser Methode werden die verschiedenen Fehlerquellen, die Unsicherheiten und die Fehler im Modell getrennt. Die Technik wird für die geothermischen Felder in Soultz und in Rittershoffen benutzt um den Einfluss verschiedener Parameter (Annahmen) auf die Lokalisierung der induzierten Seismizität zu bestimmen. Es wurde festgestellt, dass Bohrlochseismometer und eine gute azimutale Verteilung der seismischen Stationen die Unbestimmtheiten verkleinern. Die Geschwindigkeitsunbestimmheiten, die durch eine Gauss-Verteilung mit 5% Fehler dargestellt werden, vervielfachen die Lokalisierungsungenauigkeiten um einen Faktor 2 bis 3. Eine ungenaue Kenntnis des Untergrunds oder die verwendete vereinfachte Darstellung der Geschwindigkeitsverhältnisse im Untergrund (notwendig um die synthetischen Rechnungen durchführen zu können) führen zu anisotropen Abweichungen und Fehlern in der Herdtiefe von bis zu 10%. Diese können die Interpretationen des Untergrunds deutlich verfälschen. Ein “calibration shot” kann diese Fehler korrigieren. Leider können die Fehler für die Herdflächenlösungen nicht in derselben Weise korrigiert werden. Es erscheint daher als keine gute Idee, ein Reservoir nur über die Lokalisierung von Erdbeben zu bestimmen. Eine Kombination mehrerer seismischer Methoden scheint angezeigt. Die hier besprochene Methode kann als Grundlage dienen für die Erkundung anderer (geothermischer)
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Olensky, Marlies. "Data accuracy in bibliometric data sources and its impact on citation matching." Doctoral thesis, Humboldt-Universität zu Berlin, Philosophische Fakultät I, 2015. http://dx.doi.org/10.18452/17122.
Full textAbstract:
Ist die Zitationsanalyse ein geeignetes Instrument zur Forschungsevaluation? Diese Dissertation untersucht, ob die zugrunde liegenden Zitationsdaten ausreichend fehlerfrei sind, um aussagekräftige Ergebnisse der Analysen zu erzielen, beziehungsweise sollte dies nicht der Fall sein, ob der Prozess, der die zitierenden und zitierten Artikel einander zurordnet, ausreichend robust gegenüber Ungenauigkeiten in den Daten ist. Ungenauigkeiten wurden als Unterschiede in den Datenwerten der bibliographischen Angaben definiert. Die untersuchten Daten setzen sich aus gezielt ausgewählten Publikationen des Web of Science (WoS) zusammen, welche eine geschichtete Stichprobe ergeben. Die bibliographischen Daten von 3.929 Referenzen wurden in einer qualitativen Inhaltsanalyse bewertet und die bibliographischen Ungenauigkeiten in einer Taxonomie zusammengefasst. Um genau festzulegen, welche von diesen tatsächlich den Zuordnungsprozess von Zitationen beeinflussen, wurde eine spezifische Untergruppe von Zitationen, d.h. Zitationen die von WoS nicht erfolgreich dem jeweilig zitierten Artikel zugeordnet wurden, untersucht. Die Ergebnisse wurden mit den Daten zweier weiterer bibliographischen Datenbanken, Scopus und Google Scholar, sowie den Daten dreier angewandter bibliometrischer Forschungsgruppen, CWTS, iFQ und Science-Metrix, trianguliert. Die Zuordnungsalgorithmen von CWTS und iFQ konnten rund zwei Drittel dieser Zitierungen erfolgreich zuordnen. Scopus und Google Scholar konnten ebenso über 60% der fehlenden Zitierungen erfolgreich mit dem entsprechenden zitierten Artikel verbinden, während Science-Metrix nur eine geringe Anzahl an Referenzen (5%) schaffte. Vollkommen falsche erste Seitenzahlen sowie Zahlendreher in Publikationsjahren können in allen Datenquellen nicht richtig zugeordnete Zitierungen verursachen. Basierend auf den Ergebnissen wurden Lösungsvorschläge formuliert, die im Stande sind den Zuordnungsprozess von Zitationen in bibliometrischen Datenquellen zu verbessern.Is citation analysis an adequate tool for research evaluation? This doctoral research investigates whether the underlying citation data is sufficiently accurate to provide meaningful results of the analyses and if not, whether the citation matching process can rectify inaccurate citation data. Inaccuracies are defined as discrepancies in the data values of bibliographic references, since they are the essential part in the citation matching process. A stratified, purposeful data sample was selected to examine typical cases of publications in Web of Science (WoS). The bibliographic data of 3,929 references was assessed in a qualitative content analysis to identify prevailing inaccuracies in bibliographic references that can interfere with the citation matching process. The inaccuracies were categorized into a taxonomy. Their frequency was studied to determine any strata-specific patterns. To pinpoint the types of inaccuracies that influence the citation matching process, a specific subset of citations, i.e. citations not successfully matched by WoS, was investigated. The results were triangulated with five other data sources: with data from two bibliographic databases in their role as citation indexes (Scopus and Google Scholar) and with data from three applied bibliometric research groups (CWTS, iFQ and Science-Metrix). The matching algorithms of CWTS and iFQ were able to match around two thirds of these citations correctly. Scopus and Google Scholar also handled more than 60% successfully in their matching. Science-Metrix only matched a small number of references (5%). Completely incorrect starting page numbers and transposed publication years can cause a citation to be missed in all data sources. However, more often it is a combination of more than one kind of inaccuracy in more than one field that leads to a non-match. Based on these results, proposals are formulated that could improve the citation matching processes of the different data sources.
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Valášek, Jiří. "Biomechanická studie obličejového skeletu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-256572.
Full textAbstract:
Presented work deals with Biomechanical study of the facial skeleton. This work is focused on the fixation of the mandible after removal of a tumor from affected bone tissue. The aim of the work is to perform biomechanical study of the facial skeleton with subsequent detailed stress strain analysis of two mandible implants designed and manufactured for specific patients. The geometry model of mandible used for design of mandible implants and used for computational modelling has been obtained on the basis of CT data of two patients. A Theoretical-Clinical sub-study that deals with the comparison the CT data processing which is necessary for creating the model of geometry is a part of the thesis. Two models of mandible with applied mandible implant have been created for two specific patients with tumorous mandible bone tissue. Stress strain analysis has been performed for these two models. Results of the stress strain analysis of two models of mandibles with mandible implants are presented in the final chapters of the thesis. Findings of the biomechanical study have been published and applied in clinical practice.
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Nicholls, Gareth Michael. "Location inaccuracies in WSAN placement algorithms." Diss., 2010. http://hdl.handle.net/2263/26682.
Full textAbstract:
The random deployment of Wireless Sensor and Actuator Network (WSAN) nodes in areas often inaccessible, results in so-called coverage holes – i.e. areas in the network that are not adequately covered by nodes to suit the requirements of the network. Various coverage protocol algorithms have been designed to reduce or eliminate coverage holes within WSANs by indicating how to move the nodes. The effectiveness of such coverage protocols could be jeopardised by inaccuracy in the initial node location data that is broadcast by the respective nodes. This study examines the effects of location inaccuracies on five sensor deployment and reconfiguration algorithms – They include two algorithms which assume that mobile nodes are deployed (referred to as the VEC and VOR algorithms); two that assume static nodes are deployed (referred to as the CNPSS and OGDC algorithms); and a single algorithm (based on a bidding protocol) that assumes a hybrid scenario in which both static and mobile nodes are deployed. Two variations of this latter algorithm are studied. A location simulation tool was built using the GE Smallworld GIS application and the Magik programming language. The simulation results are based on three above-mentioned deployment scenarios; mobile, hybrid and static. The simulation results suggest the VOR algorithm is reasonably robust if the location inaccuracies are somewhat lower than the sensing distance and also if a high degree of inaccuracy is limited to a relatively small percentage of the nodes. The VEC algorithm is considerably less robust, but prevents nodes from drifting beyond the boundaries in the case of large inaccuracies. The bidding protocol used by the hybrid algorithm appears to be robust only when the static nodes are accurate and there is a low degree of inaccuracy within the mobile nodes. Finally the static algorithms are shown to be the most robust; the CPNSS algorithm appears to be immune to location inaccuracies whilst the OGDC algorithm was shown to reduce the number of active nodes in the network to a better extent than that of the CPNSS algorithm. CopyrightDissertation (MSc)--University of Pretoria, 2010.
Computer Science
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Tsou, Chih-Ming, and 鄒智銘. "Continuous torque measurements during screw tightening of prostheses with different fitting inaccuracies." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/52962893463432108882.
Full textAbstract:
碩士國立臺灣大學
臨床牙醫學研究所
90
Abstract It is impossible for dentists to create perfectly fit prosthesis due to clinical and laboratory limitations. It is also difficult to detect or define the inaccuracy of a framework clinically. This in vitro study was to compare differences in continuous torque measurements (CTM) during screw tightening of (1) different framework-abutment fitting inaccuracies (2) different length of the prosthesis and (3) different sequences of gold screw tightening. We also used strain gauge technique to evaluate the bending of the abutment during screw tightening. Two metal frameworks were fabricated on models with two Nobel Biocare multiunit abutment analogs separated by 8mm and 16 mm. Passive-fit and misfit models were created of both frameworks. Passive-fit models were fabricated by connecting the framework to two multiunit abutments bonded with strain gauge parallel to its long axis and fixture analogs embedded into a block of epoxy resin. Misfit models were fabricated as the passive-fit models except that we inserted spacers of 30μm and 60μm, which were removed during testing, between the framework and distal abutments. During testing, the framework was first placed on the models and mesial retaining screw was tightened to 10 N-cm. Then, with an Osseocare equipment, CTM (torque value during every rotating degree change) were taken during tightening of the retaining screw of distal abutment to 10 N-cm. Comparisons of CTM were made by (I) observing the rotating degrees of screw between the initial rising torque and final 10 N-cm and (2) calculating the area under the torque-rotating degree curve. The strain gauge readings were also recorded. Two-way ANOVA and two-sample T-test were applied for statistical analysis. The data showed that fitting inaccuracies have significant influence on the CTM (p<0.001). The sequence of screw-tightening had little effect on the final bending status of abutment after screw tightening(p>0.05). The data also showed that the rotating degrees of screw between the initial rising torque and final 10 N-cm and the area under the torque-rotating degree curve were both useful in inaccuracies discrimination.
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林立立立. "Stress Analysis of Bridge Frameworks and Titanium Abutments During Screw Tightening of Implant Suppoerted Bridge due to Different Fitting Inaccuracies." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/95620498823945307549.
Full textAbstract:
碩士國立臺灣大學
牙醫學系
84
Clinically, a perfectly passive-fit prosthesis is desired but difficult to obtain due to the material and technical limitations. When a prosthesis of clinically acceptable fit is tightened on the abutments (or fixtures), static stresses are generated in the framework and abutments (or fixtures). Tills in vitro study utilized strain-gauge technique to evaluate the effect of (1) different framework-abutment fitting inaccuracies, (2) different sequences of gold screw tightening, and (3) different framework materials on the distribution of stresses generated on die framework and abutments. Models and frameworks were designed according to a three-unit implant-supported porcelain fused to metal bridge with fixtures replacing lower first premolar and lower first molar. Strain gauges were bonded on the occlusal surfaces of the frameworks and die mesial and distal surfaces of the abutments. Bending of die joints of the frameworks and the abutments were defined and were used to represent how stresses were distributed. Two-way and three-way ANOVA for repeated measures with methods (screw-tightening sequences) were applied for statistical analysis. The data showed that bending increased significantly with increase in fitting inaccuracy (P<0.001). Under the same degree of fitting inaccuracy and with die same framework material, similar patterns of stress distribution were observed on the frameworks and abutments with different sequences of gold screw tightening. Significant differences (P<0.001) were observed in stress distribution of Ag-Pd (Jelstar) framework and Gold (Jelenko O) framework especially with small fitting inaccuracies; the pattern of stress distribution became similar as the degree of fitting inaccuracy increased. Strain-gauge data revealed that 105 μm fitting inaccuracy of Ag-Pd framework and 45μm and 135μm fitting inaccuracies of Gold framework could not be closed by means of tightening the gold screw. The data suggested that the degree of framework-abutment fitting inaccuracy has significant influence on the stress distributions of tire frameworks and abutments, the tightening sequence of gold screw has less significant effects on the stress distributions. The material of frameworks itself has significant effect on the stress distributions especially when the fitting inaccuracies are small.
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Murray, Lyndon Keith. "Effects of taxonomic and locality inaccuracies on biostratigraphy and biochronology of the Hueso and Tapiado formations in the Vallecito Creek-Fish Creek section, Anza-Borrego Desert, California." 2008. http://hdl.handle.net/2152/15340.
Full textAbstract:
The fossiliferous sediments of the Hueso and Tapiado formations exposed in the Vallecito Creek-Fish Creek section (VCFC) of the Anza-Borrego Desert (ABD) span the boundary between Blancan and Irvingtonian North American Land Mammal 'Ages.' Historically, the determination of the Blancan-Irvingtonian (B-I) boundary in the VCFC proved problematic. A new study to determine the B-I boundary in the VCFC revealed data inaccuracies in both published works and curatorial records of the mammal and other vertebrate fossils from the ABD. Most individual inaccuracies were minor, but an accumulation of over 50 years of multiple inaccuracies had significant effects on local and regional biostratigraphic and biochronologic correlations. A detailed investigation of the inaccurate data resulted in recognition of 17 types of error, with at least five sources. The two most prominent sources of error are those derived from publication and curation protocols. Examination of over 150 publications and in-house faunal lists produced over 830 taxonomic names and format variants, for 110 mammalian taxa identified from the ABD and VCFC. Approximately 50% of the taxonomic identifications were previously published without voucher catalogue numbers or fossil descriptions. A critical review of the taxonomic assignments resulted in an updated faunal list of ABD terrestrial Mammalia, including 110 taxonomic names, 66 unqualified genera, and 46 unqualified species. A supplemental list of 'retired' taxa includes 178 previously published or listed taxonomic names and format variants. The 4.5 km sequence of originally superposed sediments within VCFC is now tilted at 23 degrees and exposed in plan view. This exposure was captured in both aerial photos and satellite imagery. GIS layers of the Geomagnetic Polarity Time Scale and individual collecting localities are readily superposed onto the stratigraphic images. When united with the faunal database, GIS maps of biostratigraphic data facilitate detection and correction of data errors. Resulting corrected maps show highest and lowest stratigraphic occurrences of taxa, as well as geographic clustering of taxonomic groups, outlining possible paleohabitats. As a result of data improvement and GIS display, the local B-I boundary currently is best estimated by the presence of Ovibovini at >1.42 Ma.text
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Castro, Ana Beatriz Bento Coelho Martins de. "Parfois’ stock replenishment system - a new approach." Master's thesis, 2019. http://hdl.handle.net/10362/69210.
Full textAbstract:
The fast fashion business model has transformed the retail industry. The incessant emergence of new trends makes it challenging to accurately forecast sales which results in inventory inaccuracies ultimately compromising sales.
The present work project proposes a new approach to the Parfois’ stock replenishment system, adding value to the company. Considering the characteristics of the environment in which Parfois operates, and since the company is a large fashion retailer, a different methodology was assessed and compared with the one currently in use by the company. The results suggest a new model proposal which may provide a better solution for the current Parfois’ stocking process.