Bibliografías temáticas / NBQA

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Literatura académica sobre el tema "NBQA"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 9 de febrero de 2022

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Artículos de revistas sobre el tema "NBQA"

1

Hasty, J. D., M. M. Pfeifer, L. C. Eastwood, D. A. Gredell, C. L. Gifford, J. R. Levey, C. M. Cashman et al. "National Beef Quality Audit-2016: Phase 1, Face-to-face interviews". Translational Animal Science 1, n.º 3 (1 de septiembre de 2017): 320–32. http://dx.doi.org/10.2527/tas2017.0039.

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Abstract The National Beef Quality Audit (NBQA) is conducted every 5 yr and was most recently again conducted in 2016. Face-to-face interviews gauged progress in quality associated with live cattle production using procedures first utilized in NBQA 2011. The 2016 NBQA was the first in which interviews concerning fed steers and heifers were combined with an audit of market cow and bull beef. Face-to-face interviews were designed to illicit definitions for beef quality, estimate willingness to pay (WTP) for quality attributes, establish relative importance rankings for important quality factors, and assess images, strengths, weaknesses, potential threats, and shifting trends in the beef industry since the 2011 audit. Individuals making purchasing decisions in 5 market sectors of the steer/heifer and cow/bull beef supply chain were interviewed, including packers (n = 36), retailers (including large and small supermarket companies and warehouse food sales companies; n = 35), food service operators (including quick-serve, full-service, and institutional establishments; n = 29), further processors (n = 64), and peripherally-related government and trade organizations (GTO; n = 30). Face-to-face interviews were conducted between January and November of 2016 using a designed dynamic routing system. Definitions (as described by interviewees) for 7 pre-determined quality factors, including: (1) How and where the cattle were raised, (2) Lean, fat, and bone, (3) Weight and size, (4) Visual characteristics, (5) Food safety, (6) Eating satisfaction, and (7) Cattle genetics were recorded verbatim and categorized into similar responses for analysis. Compared to NBQA-2011, a higher percentage of companies were willing to pay premiums for guaranteed quality attributes, but overall were willing to pay lower average premiums than the companies interviewed in 2011. Food safety had the highest share of preference among all interviewees, generating a double-digit advantage over any other quality factor. The 2 beef industries have an overall positive image among interviewees, and despite lingering weaknesses, product quality continued to be at the forefront of the strengths category for both steer and heifer beef and market cow and bull beef.
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2

Harris, McKensie K., L. Clay Eastwood, Courtney A. Boykin, Ashley N. Arnold, Kerri B. Gehring, Daniel S. Hale, Christopher R. Kerth et al. "National Beef Quality Audit–2016: assessment of cattle hide characteristics, offal condemnations, and carcass traits to determine the quality status of the market cow and bull beef industry". Translational Animal Science 2, n.º 1 (22 de enero de 2018): 37–49. http://dx.doi.org/10.1093/tas/txx002.

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Abstract To continue the series that began in 1994, the National Beef Quality Audit (NBQA) – 2016 was conducted to quantify the quality status of the market cow and bull beef sector, as well as determine improvements made in the beef and dairy industry since 2007. The NBQA-2016 was conducted from March through December of 2016, and assessed hide-on carcasses (n = 5,278), chilled carcasses (n = 4,285), heads (n = 5,720), and offal items (n = 4,800) in 18 commercial processing facilities throughout the United States. Beef cattle were predominantly black-hided; 68.0% of beef cows and 67.2% of beef bulls possessed a black hide. Holstein was the predominant type of dairy animal observed. Just over half (56.0%) of the cattle surveyed had no mud contamination on the hide, and when mud was present, 34.1% of cattle only had small amounts. Harvest floor assessments found 44.6% of livers, 23.1% of lungs, 22.3% of hearts, 20.0% of viscera, 8.2% of heads, and 5.9% of tongues were condemned. Liver condemnations were most frequently due to abscess presence. In contrast, contamination was the primary reason for condemnation of all other offal items. Of the cow carcasses surveyed, 17.4% carried a fetus at the time of harvest. As expected, mean carcass weight and loin muscle area values observed for bulls were heavier and larger than cows. The marbling scores represented by cull animal carcasses were most frequently slight and traces amounts. Cow carcasses manifested a greater amount of marbling on average than bull carcasses. The predominant fat color score showed all carcasses surveyed had some level of yellow fat. Only 1.3% of carcasses exhibited signs of arthritic joints. Results of the NBQA-2016 indicate there are areas in which the beef and dairy industries have improved and areas that still need attention to prevent value loss in market cows and bulls.
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3

Eastwood, L. C., C. A. Boykin, M. K. Harris, A. N. Arnold, D. S. Hale, C. R. Kerth, D. B. Griffin et al. "National Beef Quality Audit-2016: Transportation, mobility, and harvest-floor assessments of targeted characteristics that affect quality and value of cattle, carcasses, and by-products1". Translational Animal Science 1, n.º 2 (1 de abril de 2017): 229–38. http://dx.doi.org/10.2527/tas2017.0029.

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Abstract The National Beef Quality Audit-2016 (NBQA-2016) was conducted to assess current transportation, mobility, and quality characteristics of U.S. fed steers and heifers. Data were collected at 17 beef processing facilities between March and November 2016. About 8,000 live cattle were evaluated for transportation and mobility, and about 25,000 carcasses were evaluated on the slaughter floor. Cattle were in transit to the slaughter facility for a mean duration of 2.7 h from a mean distance of 218.5 km using trailers with dimensions ranging from 17.84 m2 to 59.09 m2. Area allotted per animal averaged 1.13 m2 and ranged from 0.85 m2 to 2.28 m2. A total of 96.8% of cattle received a mobility score of 1 (walks easily, no apparent lameness). Identification types (35.1% had multiple) were lot visual tags (61.5%), individual tags (55.0%), electronic tags (16.9%), metal-clip tags (9.2%), bar-coded tags (0.05%), wattles (0.01%), and other (2.6%). Cattle were black-hided (57.8%), Holstein (20.4%), red-hided (10.5%), yellow-hided (4.8%), gray-hided (2.9%), brown-hided (1.3%), and white-hided (1.1%). Unbranded hides were observed on 74.3% of cattle; 18.6% had brands located on the butt, 6.3% on the side, and 1.3% on the shoulder (values exceed 100% due to multiple brands). For hide-on carcasses, 37.7% displayed no mud or manure; specific locations for mud or manure were legs (40.8%), belly (33.0%), tail region (15.5%), side (6.8%), and top-line (3.9%). Cattle without horns represented 83.3% of the sample, and cattle that did have horns measured: < 2.54 cm (5.5%), 2.54 to 12.7 cm (8.3%), and > 12.7 cm (2.9%). Carcasses without bruises represented 61.1% of those sampled, whereas 28.2% had 1, 8.2% had 2, 2.1% had 3, and 0.3% had 4 bruises. Of those carcasses with a bruise, the bruise was located on the loin (29.7%), round (27.8%), chuck (16.4%), rib (14.4%), and brisket/plate/flank (11.6%). Frequencies of offal condemnations were livers (30.8%), lungs (18.2%), viscera (16.3%), hearts (11.1%), heads (2.7%), and tongues (2.0%). Compared to NBQA-2011, fewer cattle were identified for traceability, fewer were black-hided, a greater number were Holstein cattle, more with no brand and no horns, fewer without bruises, more liver, lung, and viscera condemnations, and fewer heads and tongues were condemned. The NBQA remains an influential survey for the U.S. beef industry to provide benchmarks and strategic plans for continued improvement of beef quality and consistency.
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4

Hyphantis, Thomas, Anna Kaltsouda, John Triantafillidis, Odysseas Platis, Soula Karadagi, Konstantinos Christou, Christos Mantas, Argyrios Argyropoulos y Venetsanos Mavreas. "Personality Correlates of Adherence to Type 2 Diabetes Regimens". International Journal of Psychiatry in Medicine 35, n.º 1 (marzo de 2005): 103–7. http://dx.doi.org/10.2190/nbqa-08a7-6mg9-gc8w.

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Kim, Yong-Hak, Wooseok Song, Jin-Sik Kim, Li Jiao, Kangseok Lee y Nam-Chul Ha. "Structural and Mechanistic Insights into the Pseudomonas fluorescens 2-Nitrobenzoate 2-Nitroreductase NbaA". Applied and Environmental Microbiology 81, n.º 15 (29 de mayo de 2015): 5266–77. http://dx.doi.org/10.1128/aem.01289-15.

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ABSTRACTThe bacterial 2-nitroreductase NbaA is the primary enzyme initiating the degradation of 2-nitrobenzoate (2-NBA), and its activity is controlled by posttranslational modifications. To date, the structure of NbaA remains to be elucidated. In this study, the crystal structure of a Cys194Ala NbaA mutant was determined to a 1.7-Å resolution. The substrate analog 2-NBA methyl ester was used to decipher the substrate binding site by inhibition of the wild-type NbaA protein. Tandem mass spectrometry showed that 2-NBA methyl ester produced a 2-NBA ester bond at the Tyr193 residue in the wild-type NbaA but not residues in the Tyr193Phe mutant. Moreover, covalent binding of the 2-NBA methyl ester to Tyr193 reduced the reactivity of the Cys194 residue on the peptide link. The Tyr193 hydroxyl group was shown to be essential for enzyme catalysis, as a Tyr193Phe mutant resulted in fast dissociation of flavin mononucleotide (FMN) from the protein with the reduced reactivity of Cys194. FMN binding to NbaA varied with solution NaCl concentration, which was related to the catalytic activity but not to cysteine reactivity. These observations suggest that the Cys194 reactivity is negatively affected by a posttranslational modification of the adjacent Tyr193 residue, which interacts with FMN and the substrate in the NbaA catalytic site.
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6

Kim, Yong-Hak, Woo-Seok Song, Hayoung Go, Chang-Jun Cha, Cheolju Lee, Myeong-Hee Yu, Peter C. K. Lau y Kangseok Lee. "2-Nitrobenzoate 2-Nitroreductase (NbaA) Switches Its Substrate Specificity from 2-Nitrobenzoic Acid to 2,4-Dinitrobenzoic Acid under Oxidizing Conditions". Journal of Bacteriology 195, n.º 2 (2 de noviembre de 2012): 180–92. http://dx.doi.org/10.1128/jb.02016-12.

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ABSTRACT2-Nitrobenzoate 2-nitroreductase (NbaA) ofPseudomonas fluorescensstrain KU-7 is a unique enzyme, transforming 2-nitrobenzoic acid (2-NBA) and 2,4-dinitrobenzoic acid (2,4-DNBA) to the 2-hydroxylamine compounds. Sequence comparison reveals that NbaA contains a conserved cysteine residue at position 141 and two variable regions at amino acids 65 to 74 and 193 to 216. The truncated mutant Δ65-74 exhibited markedly reduced activity toward 2,4-DNBA, but its 2-NBA reduction activity was unaffected; however, both activities were abolished in the Δ193-216 mutant, suggesting that these regions are necessary for the catalysis and specificity of NbaA. NbaA showed different lag times for the reduction of 2-NBA and 2,4-DNBA with NADPH, and the reduction of 2,4-DNBA, but not 2-NBA, failed in the presence of 1 mM dithiothreitol or under anaerobic conditions, indicating oxidative modification of the enzyme for 2,4-DNBA. The enzyme was irreversibly inhibited by 5,5′-dithio-bis-(2-nitrobenzoic acid) and ZnCl2, which bind to reactive thiol/thiolate groups, and was eventually inactivated during the formation of higher-order oligomers at high pH, high temperature, or in the presence of H2O2. SDS-PAGE and mass spectrometry revealed the formation of intermolecular disulfide bonds by involvement of the two cysteines at positions 141 and 194. Site-directed mutagenesis indicated that the cysteines at positions 39, 103, 141, and 194 played a role in changing the enzyme activity and specificity toward 2-NBA and 2,4-DNBA. This study suggests that oxidative modifications of NbaA are responsible for the differential specificity for the two substrates and further enzyme inactivation through the formation of disulfide bonds under oxidizing conditions.
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7

Iwaki, Hiroaki, Takamichi Muraki, Shun Ishihara, Yoshie Hasegawa, Kathryn N. Rankin, Traian Sulea, Jason Boyd y Peter C. K. Lau. "Characterization of a Pseudomonad 2-Nitrobenzoate Nitroreductase and Its Catabolic Pathway-Associated 2-Hydroxylaminobenzoate Mutase and a Chemoreceptor Involved in 2-Nitrobenzoate Chemotaxis". Journal of Bacteriology 189, n.º 9 (2 de febrero de 2007): 3502–14. http://dx.doi.org/10.1128/jb.01098-06.

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ABSTRACT Pseudomonas fluorescens strain KU-7 is a prototype microorganism that metabolizes 2-nitrobenzoate (2-NBA) via the formation of 3-hydroxyanthranilate (3-HAA), a known antioxidant and reductant. The initial two steps leading to the sequential formation of 2-hydroxy/aminobenzoate and 3-HAA are catalyzed by a NADPH-dependent 2-NBA nitroreductase (NbaA) and 2-hydroxylaminobenzoate mutase (NbaB), respectively. The 216-amino-acid protein NbaA is 78% identical to a plasmid-encoded hypothetical conserved protein of Polaromonas strain JS666; structurally, it belongs to the homodimeric NADH:flavin mononucleotide (FMN) oxidoreductase-like fold family. Structural modeling of complexes with the flavin, coenzyme, and substrate suggested specific residues contributing to the NbaA catalytic activity, assuming a ping-pong reaction mechanism. Mutational analysis supports the roles of Asn40, Asp76, and Glu113, which are predicted to form the binding site for a divalent metal ion implicated in FMN binding, and a role in NADPH binding for the 10-residue insertion in the β5-α2 loop. The 181-amino-acid sequence of NbaB is 35% identical to the 4-hydroxylaminobenzoate lyases (PnbBs) of various 4-nitrobenzoate-assimilating bacteria, e.g., Pseudomonas putida strain TW3. Coexpression of nbaB with nbaA in Escherichia coli produced a small amount of 3-HAA from 2-NBA, supporting the functionality of the nbaB gene. We also showed by gene knockout and chemotaxis assays that nbaY, a chemoreceptor NahY homolog located downstream of the nbaA gene, is responsible for strain KU-7 being attracted to 2-NBA. NbaY is the first chemoreceptor in nitroaromatic metabolism to be identified, and this study completes the gene elucidation of 2-NBA metabolism that is localized within a 24-kb chromosomal locus of strain KU-7.
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8

Anderson, William B. "Labor’s Denial: A Case Study of How Labor Used the Media and Public Relations to Block the First NBA–ABA Merger Attempt". International Journal of Sport Communication 10, n.º 1 (marzo de 2017): 105–23. http://dx.doi.org/10.1123/ijsc.2016-0091.

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The owners of professional basketball teams in the National Basketball Association (NBA) and the American Basketball Association (ABA) wanted to merge the 2 leagues because a war between them over players had led to escalating salaries. The National Basketball Players Association (NBPA) responded with a lawsuit to block the merger citing antitrust regulations. When the owners went to Congress to ask for a special antitrust exemption, they were denied. This case study discusses the impact of communication on legislative lobbying, specifically how the NBPA used direct and indirect lobbying techniques to block the first NBA–ABA merger attempt. This case study offers a means to understand how and why some entities succeed in their public debates, while others fail. For the scholar, this case study adds to the limited literature on legislative lobbying from a communication perspective. For the practitioner, this study provides some guidelines for the effective use of lobbying.
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Ullah, M. W., N. Haraguchi, M. A. Ali, M. R. Alam, M. Mahiuddin y S. K. Ahamed. "Atom Transfer Radical Polymerization of Styrene and Acrylates: Effects of Catalyst, Ligand, Solvent, and Initiator". Journal of Scientific Research 13, n.º 3 (1 de septiembre de 2021): 999–1010. http://dx.doi.org/10.3329/jsr.v13i3.53347.

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Well-defined polystyrenes were successfully prepared by the CuX/(dN)bpy or CuX/ PMDETA catalyzed atom transfer radical polymerization of styrene using 1-phenylethyl bromide (1-PEBr) or benzyl bromide (BnBr) as initiators. We found that the CuX/PMDETA catalyzed ATRP of styrene proceeded faster than CuX/(dN)bpy catalyzed counterpart in bulk, diphenyl ether (DPE) and anisole. Using CuX/(dN)bpy catalyst, well-defined polystyrenes were obtained with good chain-end functionalities and low polydispersity (Mw/Mn <1.5) compared to CuX/PMDETA catalyst. The CuBr/PMDETA catalyzed ATRP of n-butyl acrylate (nBA), n-butyl methacrylate (nBMA), and tert-butyl methacrylate (tBMA) were also proceeded in a controlled manner. The molecular structure and molecular weight of polymers were determined by proton nuclear magnetic resonance (1H NMR) spectroscopy and size exclusion chromatography (SEC), respectively.
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Kong, Du, Wei Wang, Gang Du, Binyao Shi, Zhengchen Jiang y Bin Jin. "Liver Retraction Using n-Butyl-2-Cyanoacrylate (NBCA) Glue during Laparoscopic Splenectomy and Azygoportal Disconnection in Cirrhotic Patients". BioMed Research International 2018 (19 de agosto de 2018): 1–7. http://dx.doi.org/10.1155/2018/3064046.

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Background. Although liver retraction using n-butyl-2-cyanoacrylate (NBCA) glue has been applied to laparoscopic upper abdominal surgery in noncirrhotic patients, there is still no consensus on its safety and feasibility for cirrhotic patients. In this study, we aimed to investigate the safety and effectiveness of liver retraction using NBCA glue during laparoscopic splenectomy and azygoportal disconnection (LSD) for gastroesophageal varices and hypersplenism secondary to liver cirrhosis and portal hypertension. Methods. Thirty-nine gastroesophageal varices and hypersplenism secondary to liver cirrhosis and portal hypertension patients were included in our study. We performed LSD in the presence of NBCA glue (n = 22, NBCA group) and absence of NBCA glue (n = 17, n-NBCA group), respectively. The operation time, blood loss, postoperative hospitalization, and liver function were compared between the two groups. Results. There was no mortality during the operation. One patient in non-NBCA group received open surgery due to parenchyma hemorrhage. Postoperative pleural effusion occurred in 2 cases of the NBCA group and 1 of the non-NBCA group. One showed left subphrenic abscess in the non-NBCA group. No postoperative bleeding occurred after 9-30 months of follow-up. The time of operation in NBCA group was significantly shorter than those in n-NBCA group (198.86±17.86 versus 217.81±20.25min, P<0.01). Blood loss in NBCA group was significantly lower than non-NBCA group (159.09±56.98 versus 212.50±88.51 ml, P<0.05). The levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were increased on day 1 after LSD and decreased to normal level on day 7 after LSD in both groups. There was no significant difference in postoperative hospitalization and liver function between the two groups. Conclusion. Liver retraction using NBCA glue during LSD for gastroesophageal varices and hypersplenism secondary to liver cirrhosis and portal hypertension is safe, effective, and feasible.
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Tesis sobre el tema "NBQA"

1

Francis, Rashad J. Kelly Thomas M. "A shirking model of NBA players". Waco, Tex. : Baylor University, 2006. http://hdl.handle.net/2104/4853.

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Tran, Tuan M. Eng (Tuan Minh) Massachusetts Institute of Technology. "Predicting NBA games with matrix factorization". Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106385.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.
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 (page 37).
In my thesis, I present the methods I use to predict NBA games using matrix factorization. Matrix factorization is popular through the Netflix recommendation problem, but in general, one can apply it to data that are best modeled as the result of pairwise interaction. My thesis contains three parts. First, I explain how I model NBA prediction as a matrix factorization problem and use the basic low-rank matrix factorization approach to discover structure in the data. I also explain some differences between using matrix factorization for NBA prediction versus that in the Netflix recommendation problem. Second, I use probabilistic matrix factorization (PMF) to incorporate the fact that when two teams play each other, the scores will be different each time. Lastly, I incorporate supplementary information such as the date of the game by combining multiple PMF problems using Gaussian process priors. I replace the scalar latent features with functions of this supplementary information to aid with prediction.
by Tuan Tran.
M. Eng.
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3

Shah, Parin. "Economic Subterfuge and the NBA Lockout". Thesis, Boston College, 2012. http://hdl.handle.net/2345/2641.

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Thesis advisor: Richard, S.J. McGowan
At the very core of the National Basketball Association’s labor negotiations between the owners and the players during the 2011 lockout was the league’s argument that its economic structure was broken. Owners contended that the NBA’s soft salary cap system, and the resulting payroll disparity, has put small-market franchises at a talent disadvantage and produced a league of haves and have-nots. To remedy this purported competitive balance problem, the owners demanded severe policy measures to decrease the pay dispersion among teams. However, the players union cautioned that these hardline provisions were merely an attempt to transfer wealth from players to owners. This charge warranted further analysis. Existing literature on this topic is either outdated or insufficient in scope. As such, using regression analysis, this thesis evaluated the league’s argument and determined to what extent the league’s soft salary cap system has contributed to its competitive imbalance.The empirical analysis of this thesis produced several meaningful conclusions. While the NBA has relative imbalance, it does not affect consumer demand for the regular season product. Moreover, while pay dispersion exists, additional salary expenditures only marginally add to a team’s winning percentage. There is no significant relationship between payroll disparity and competitive balance. Finally, with the escalating importance of media rights contracts and the historical appreciation of franchise valuation, the league overstated the financial distress of most of its small-market owners. Overall, the NBA and its owners used deceptive rhetoric and misleading economic policies to decrease player salaries, not to increase competitive balance, in a collusive effort to maximize profits and reassert its diminishing monopsony power in an increasingly star-driven league
Thesis (BS) — Boston College, 2012
Submitted to: Boston College. Carroll School of Management
Discipline: Carroll School of Management Honors Program
Discipline: Economics
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4

Perry, Christopher Mattison. "Selection Bias in the NBA Draft". Thesis, Boston College, 2008. http://hdl.handle.net/2345/554.

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Thesis advisor: Christopher Maxwell
In this paper I present an econometric analysis of selection bias in the NBA Draft from 1995-2003. Employing an interval regression maximum likelihood control model that predicts the eventual value of players based on their Draft position, I pinpoint which groups of players consistently over-perform or under-perform relative to their Draft position. Using this analysis I detect bias pertaining to four different groups of players. There was a bias against high school players, especially those taken in the lottery (the top of the first round of the Draft), which may point to risk-averse tendencies of NBA teams. There was also a bias in favor of centers taken in the lottery, who were consistently drafted too high. Black players were selected too low in the first round, and too high in the second round. The final effect deals with foreign entrants to the Draft. From 1995-2001 foreigners were drafted too low; in 2002 and 2003, when more foreigners were selected, they were drafted too high. My paper details the nature of these biases and analyzes their potential causes
Thesis (BA) — Boston College, 2008
Submitted to: Boston College. College of Arts and Sciences
Discipline: Economics
Discipline: Economics Honors Program
Discipline: College Honors Program
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5

Jones, Eric Scot. "Predicting Outcomes of NBA Basketball Games". Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/28084.

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A stratified random sample of 144 NBA basketball games was taken over a three-year period, between 2008 and 2011. Models were developed to predict point spread and to estimate the probability of a specific team winning based on various in-game statistics. Statistics significant in the model were field-goal shooting percentage, three-point shooting percentage, free-throw shooting percentage, offensive rebounds, assists, turnovers, and free-throws attempted. Models were verified using exact in-game statistics for a random sample of 50 NBA games taken during the 2011-2012 season with 88-94% accuracy. Three methods were used to estimate in-game statistics of future games so that the models could be used to predict a winner in games played by Team A and Team B. Models using these methods had accuracies of approximately 62%. Seasonal averages for these in-game statistics were used in the model developed to predict the winner of each game for the 2013-2016 NBA Championships.
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Hong, Sungjai. "Determining Effectiveness of NBA Jersey Sponsorship". Bowling Green State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1562861534058407.

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Anderson, Scott E. "Does Tanking Work? Evidence from the NBA". Scholarship @ Claremont, 2015. http://scholarship.claremont.edu/cmc_theses/1012.

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The National Basketball Association (NBA) has recently come under scrutiny from media and fans due to the perception that some franchises are losing games on purpose in an attempt to win a higher draft pick. While researchers have concluded tanking does exist in the NBA, this is the first paper to analyze the strategy’s success in terms of generating increases in future winning percentage or future franchise value. This paper, through panel data regressions controlling for fixed effects for 21 seasons, has found that tanking does have a large impact on future winning percentage. A team that tanks typically sees a significant increase in wins of approximately 9.87 games between the 2nd and 4th year after the team tanked. These results have large implications for the league as the NBA recently began draft reform discussions to reduce the incentive to tank. This paper validates the leagues’ belief that draft reform must occur as tanking can give an unfair advantage in future years.
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8

Puranmalka, Keshav. "Modelling the NBA to make better predictions". Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/85464.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 65-66).
Unexpected events often occur in the world of sports. In my thesis, I present work that models the NBA. My goal was to build a model of the NBA Machine Learning and other statistical tools in order to better make predictions and quantify unexpected events. In my thesis, I first review other quantitative models of the NBA. Second, I present novel features extracted from NBA play-by-play data that I use in building my predictive models. Third, I propose predictive models that use team-level statistics. In the team models, I show that team strength relations might not be transitive in these models. Fourth, I propose predictive models that use player-level statistics. In these player-level models, I demonstrate that taking the context of a play into account is important in making useful prediction. Finally, I analyze the effectiveness of the different models I created, and propose suggestions for future lines of inquiry.
by Keshav Puranmalka.
M. Eng.
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9

Kates, Mitchell (Mitchell H. ). "Player motion analysis : automatically classifying NBA plays". Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/100664.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 55-56).
Basketball is a team game, and an important task for coaches is analyzing the effectiveness of various offensive plays. Currently, teams spend a great deal of time examining video of past games. If teams could automatically classify plays, they could more effectively analyze their own plays and scout their opponents. In this thesis, we develop a methodology to help automatically classify a set of NBA plays using data from the SportVU optical tracking system, which tracks the position of each player and the ball 25 times per second. The problem is made challenging by the variations in how a play is run, the high proportion of possessions where no set play is run, the variance in length of plays, and the difficulty of acquiring a large number of labeled plays. We develop a framework for classifying plays using supervised machine learning. In our approach, we incorporate a novel sliding block algorithm that improves our classifier by accounting for the difference in play lengths. We also use a variant of the traditional one vs. all multi-class SVM. This approach is well suited to distinguish labeled plays from free motion and unlabeled plays. This thesis demonstrates that we can use SportVU data to automatically differentiate plays. We selected a total of six plays to classify, where each play had at least 20 labeled instances. We also added a large selection of plays that were not one of these six and labeled them as Other. Our framework correctly predicted the play with an accuracy of 72.6% and an F-score of .727. We also propose a framework, based on our engineered features, to extend our research to unlabeled plays.
by Mitchell Kates.
M. Eng.
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Aguilar-Mamani, Wilson. "Crystallization of NBA-ZSM-5 from kaolin". Doctoral thesis, Luleå tekniska universitet, Kemiteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-63169.

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ZSM-5 is an aluminosilicate zeolite with high Si/Al ratio with suitable properties for catalysis, ion exchange, adsorption and membrane applications. The main goal of this thesis was to study the growth of ZSM-5 zeolite crystals from inexpensive natural sources of silica and alumina, as well as n-butylamine (NBA) as a low-cost structure directing agent. The first objective of this work was to develop pathways to synthesize ZSM-5 crystals from kaolin clay or diatomaceous earth, two inexpensive natural sources of silica and alumina (Paper I). In the case of kaolin, a heat treatment was used in order to form amorphous metakaolinite. Subsequently, dealumination of the raw materials by acid leaching made it possible to reach appropriate Si/Al ratios and to reduce the amount of impurities. Finally, leached metakaolinite or diatomaceous earth was reacted with sodium hydroxide and NBA. After synthesis optimization, both sources of aluminosilicates were found to behave differently during the course of synthesis and to lead to slightly different reaction products. The final products exhibited Si/Al ratios in the range 10-20. The use of leached diatomaceous earth allowed to reach higher yield of ZSM-5 crystals within comparable synthesis times. However, low amounts of mordenite were inevitably formed as a by-product, which was related to the high calcium content of diatomaceous earth. Therefore, the rest of the thesis focused on the kaolin system. In order to study the growth mechanism of ZSM-5 from leached metakaolinite, a proper methodology to gain local compositional data by energy dispersive spectroscopy (EDS) on aluminosilicates was developed (Paper II). Zeolite A was used as a model system that could be ion-exchanged with various elements. In order to evaluate the reliability of the measurements, inductively coupled plasma-sector field mass spectrometry (ICP-SFMS) and EDS were compared. The EDS method developed in this work resulted in molar ratios very close to theoretical values and was therefore found more reliable than ICP-SFMS. Therefore, the method developed for zeolite A was applied in the rest of the thesis work to study the formation and growth of ZSM-5 crystals. The second part of this work focused on the kaolin system in order to understand the nucleation and growth processes of the ZSM-5 crystals. This system was heterogeneous, due to the formation of a gel upon heating of the synthesis mixture. First, the internal structure of the gel was investigated (Paper III). Second, a kinetic study was performed and compared with microstructural observations (Paper IV). Finally, the mechanisms leading to Al-zoning and dendritical growth of the zeolite crystals were investigated (Paper V). The characterization of the intermediate phases during the different stages of the hydrothermal synthesis were analyzed by different analytical techniques, such as inductively coupled plasma-sector field mass spectrometry (ICP-SFMS), dynamic light scattering (DLS), extreme high resolution-scanning electron microscopy (XHR-SEM), energy dispersive spectroscopy (EDS), high resolution-transmission electron microscopy (HR-TEM), X-ray diffraction (XRD) and nitrogen gas adsorption. These investigations led to several important conclusions: 1) The walls of the gel were shown for the first time to be inhomogeneous and to possess a biphasic internal structure consisting of a mesoporous skeleton of aluminosilicate nanoparticles embedded in a silicate-rich soluble matrix of soft matter. 2) The kinetic study and microstructural evidences indicated that the early crystals were fully embedded inside the gel phase and that crystal growth was retarded, as the formation of the gel occurred simultaneously with the early growth of the crystals. Hence, nucleation and growth appeared to be solution mediated.  3) Finally, the Al zoning of the crystals was related to the biphasic internal structure of the gel, since the silicate-rich matrix was preferentially consumed first. 4) The dendrites present at the surface of the crystals during most of the growth process were shown to be caused by the presence of a web of nanoparticles, most likely originating from the mesoporous skeleton inside the gel. In the future, these findings are expected to lead to optimized synthesis pathways of catalysts with homogeneous properties and to contribute to the development of poor regions in Bolivia.
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Libros sobre el tema "NBQA"

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NBA. New York: AV2 by Weigl, 2013.

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NBA slam. New York: Scholastic Inc., 2000.

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NBA superstars. New York: Scholastic, 2002.

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Stevenson, Amy. NBA finals. Mankato, MN: Creative Education, 1990.

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Medeiros, Michael De. NBA finals. New York, NY: Weigl Publishers, 2007.

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BradyGames. NBA ShowTime: NBA on NBC: Official Strategy Guide. Indianapolis, IN: BradyGames, 1999.

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NBA power conditioning. Champaign, IL: Human Kinetics, 1997.

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Sandler, Corey. Inside NBA showdown. Indianapolis, IN: Brady Pub., 1993.

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Official NBA trivia. New York, NY: HarperEntertainment, 1999.

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James, Preller, ed. NBA game day. New York: Scholastic, 1997.

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Capítulos de libros sobre el tema "NBQA"

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Tingley, Suzanne Capek. "Mr. NBA". En How to Handle Difficult Parents, 75–80. 2a ed. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003235606-10.

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Wiethoff, Sarah, Kailash P. Bhatia y Henry Houlden. "Genetics of NBIA Disorders". En Movement Disorder Genetics, 263–91. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17223-1_13.

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Zhu, Luyang, Konstantinos Rematas, Brian Curless, Steven M. Seitz y Ira Kemelmacher-Shlizerman. "Reconstructing NBA Players". En Computer Vision – ECCV 2020, 177–94. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58558-7_11.

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Dines, Monica, Rakefet Schwarz y Noam Adir. "Crystal Structures of the NblA Protein". En Photosynthesis. Energy from the Sun, 237–41. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6709-9_53.

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Dusek, Petr y Daniela Zahorakova. "Genetics of Metal Disorders (Excluding NBIA)". En Movement Disorder Genetics, 293–330. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17223-1_14.

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Block, Walter E. "The NBA-NFL-MLB Eliminator". En Defending the Undefendable III, 221–22. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3957-9_59.

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Buxton, Marilynn L. Rapp. "NBA Salaries Are Not Dribble". En Math Bafflers, 22–23. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003236382-11.

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Formentin, Melanie J. "Crisis Communication and the NBA Lockout". En Reputational Challenges in Sport, 117–34. New York : Routledge, 2018.: Routledge, 2018. http://dx.doi.org/10.4324/9781315165608-9.

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Su, Yi-Jen y Yue-Qun Chen. "NBA All-Star Prediction Using Twitter Sentiment Analysis". En Advances in Intelligent Systems and Computing, 193–201. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-01796-9_20.

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Hu, Feifang y James V. Zidek. "Forecasting NBA basketball playoff outcomes using the weighted likelihood". En Institute of Mathematical Statistics Lecture Notes - Monograph Series, 385–95. Beachwood, Ohio, USA: Institute of Mathematical Statistics, 2004. http://dx.doi.org/10.1214/lnms/1196285406.

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Actas de conferencias sobre el tema "NBQA"

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LaBounta, Henry. "NBA Street Homecourt". En ACM SIGGRAPH 2007 computer animation festival. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1281740.1281828.

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Mannie, Eric C. "Multiprotocol over NBMA (MPON): models reengineering". En Photonics East (ISAM, VVDC, IEMB), editado por Raif O. Onvural, Seyhan Civanlar, Paul J. Doolan y James V. Luciani. SPIE, 1998. http://dx.doi.org/10.1117/12.333728.

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DeLong, Colin, Loren Terveen y Jaideep Srivastava. "TeamSkill and the NBA". En ASONAM '13: Advances in Social Networks Analysis and Mining 2013. New York, NY, USA: ACM, 2013. http://dx.doi.org/10.1145/2492517.2492628.

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Kim, Joongi, Keon Jang, Keunhong Lee, Sangwook Ma, Junhyun Shim y Sue Moon. "NBA (network balancing act)". En EuroSys '15: Tenth EuroSys Conference 2015. New York, NY, USA: ACM, 2015. http://dx.doi.org/10.1145/2741948.2741969.

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Jin, Yanbo. "Analysis of NBA Business Strategy". En 2021 6th International Conference on Social Sciences and Economic Development (ICSSED 2021). Paris, France: Atlantis Press, 2021. http://dx.doi.org/10.2991/assehr.k.210407.134.

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Lin, Vito, Eason Chen, Daniel Lee y Carl Chen. "Package characterization on advanced NBA-QFN structure". En 2010 5th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT). IEEE, 2010. http://dx.doi.org/10.1109/impact.2010.5699533.

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Feng, Qiming y Suping Qian. "Research on NBA Schedule Analysis and Evaluation". En ICBIM 2020: 2020 The 4th International Conference on Business and Information Management. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3418653.3418665.

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Hauri, Sandro, Nemanja Djuric, Vladan Radosavljevic y Slobodan Vucetic. "Multi-Modal Trajectory Prediction of NBA Players". En 2021 IEEE Winter Conference on Applications of Computer Vision (WACV). IEEE, 2021. http://dx.doi.org/10.1109/wacv48630.2021.00168.

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Lauck, A. G., C. R. Kalmanek y K. K. Ramakrishnan. "SUBMARINE: an architecture for IP routing over large NBMA networks". En IEEE INFOCOM '99. Conference on Computer Communications. Proceedings. Eighteenth Annual Joint Conference of the IEEE Computer and Communications Societies. The Future is Now (Cat. No.99CH36320). IEEE, 1999. http://dx.doi.org/10.1109/infcom.1999.749257.

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Hewko, Jordan, Robert Sullivan, Shaun Reige y Mohamad El-Hajj. "Data Mining in The NBA: An Applied Approach". En 2019 IEEE 10th Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (UEMCON). IEEE, 2019. http://dx.doi.org/10.1109/uemcon47517.2019.8993074.

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Informes sobre el tema "NBQA"

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Heinanen, J. y R. Govindan. NBMA Address Resolution Protocol (NARP). RFC Editor, diciembre de 1994. http://dx.doi.org/10.17487/rfc1735.

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Luciani, J., D. Katz, D. Piscitello, B. Cole y N. Doraswamy. NBMA Next Hop Resolution Protocol (NHRP). RFC Editor, abril de 1998. http://dx.doi.org/10.17487/rfc2332.

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Price, Joseph y Justin Wolfers. Racial Discrimination Among NBA Referees. Cambridge, MA: National Bureau of Economic Research, junio de 2007. http://dx.doi.org/10.3386/w13206.

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Armitage, G., P. Schulter, M. Jork y G. Harter. IPv6 over Non-Broadcast Multiple Access (NBMA) networks. RFC Editor, enero de 1999. http://dx.doi.org/10.17487/rfc2491.

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Armitage, G. Using the MARS Model in non-ATM NBMA Networks. RFC Editor, enero de 1998. http://dx.doi.org/10.17487/rfc2269.

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Price, Joseph, Lars Lefgren y Henry Tappen. Interracial Workplace Cooperation: Evidence from the NBA. Cambridge, MA: National Bureau of Economic Research, febrero de 2009. http://dx.doi.org/10.3386/w14749.

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Gross, J., R. Thompson, R. Perry y D. Schneberk. CT Scans of NASA BSTRA Balls 5f5, f2, f3, sr2c, nb2a, hb2b. Office of Scientific and Technical Information (OSTI), enero de 2004. http://dx.doi.org/10.2172/15009773.

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Greene, M., J. Cucchiara y J. Luciani. Definitions of Managed Objects for the NBMA Next Hop Resolution Protocol (NHRP). RFC Editor, agosto de 1999. http://dx.doi.org/10.17487/rfc2677.

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Cohen, Alma, Nadav Levy y Roy Sasson. Termination Risk and Agency Problems: Evidence from the NBA. Cambridge, MA: National Bureau of Economic Research, junio de 2018. http://dx.doi.org/10.3386/w24708.

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Lantis, Robert y Erik Nesson. Hot Shots: An Analysis of the ‘Hot Hand’ in NBA Field Goal and Free Throw Shooting. Cambridge, MA: National Bureau of Economic Research, noviembre de 2019. http://dx.doi.org/10.3386/w26510.

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