Relevant bibliographies by topics / NNH

Academic literature on the topic 'NNH'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "NNH"

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Raju, Gokaraju K., Sean Khozin, Karthik Gurumurthi, Reuben Domike, and Janet Woodcock. "Patient-Centered Approach to Benefit–Risk Characterization Using Number Needed to Benefit and Number Needed to Harm: Advanced Non–Small-Cell Lung Cancer." JCO Clinical Cancer Informatics, no. 4 (September 2020): 769–83. http://dx.doi.org/10.1200/cci.19.00103.

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This work summarizes the benefit and risk of the results of clinical trials submitted to the US Food and Drug Administration of therapies for the treatment of non–small cell lung cancer (NSCLC) using number needed to benefit (NNB) and number needed to harm (NNH) metrics. NNB and NNH metrics have been reported as potentially being more patient centric and more intuitive to medical practitioners than more common metrics, such as the hazard ratio, and valuable to medical practitioners in complementing other metrics, such as the median time to event. This approach involved the characterization of efficacy and safety results in terms of NNB and NNH of 30 clinical trials in advanced NSCLC supporting US Food and Drug Administration approval decisions from 2003 to 2017. We assessed trends of NNB over time of treatment (eg, for programmed death 1 inhibitors) and variation of NNB across subpopulations (eg, characterized by epidermal growth factor receptor mutation, programmed death ligand 1 expression, Eastern Cooperative Oncology Group performance status, age, and extent of disease progression). Furthermore, the evolution of NNB of treatments for advanced NSCLC was charted from 2003 to 2017. Across subpopulations, NNB, on average, was 4 patients for approved targeted therapies in molecularly enriched populations, 11 patients for approved therapies in nonmolecularly enriched populations, and 23 patients for withdrawn or unapproved therapies. Furthermore, the NNB analysis showed variation for attributes of epidermal growth factor receptor mutations, level of programmed death 1 expression, Eastern Cooperative Oncology Group performance status, etc. When considering the best-case subpopulations and available drugs, the NNB frontier reduced from an estimated value of 7.7 in 2003 to an estimated value of 2.5 in 2017 at the estimated median overall survival—equal to 6 months—of an untreated patient.
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Ma, Teng, Yuanlu Wang, Fengliang Wang, and Fei Li. "catena-Poly[[dichloridomercury(II)]-N′-nicotinoylnicotinohydrazide]." Acta Crystallographica Section E Structure Reports Online 68, no. 4 (March 3, 2012): m367. http://dx.doi.org/10.1107/s1600536812008884.

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The title complex, [HgCl2(C12H10N4O2)]n, is composed of one HgIIion, one nnh ligand (nnh =N′-nicotinoylnicotinohydrazide) and two coordinated chloride ions. The HgIIion shows a distorted tetrahedral geometry, being surrounded by two N atoms from two nnh ligands and two chloride ions. Due to the bridging role of nnh, the HgIIatoms are connected into polymeric chains along thecaxis, which are further interlinkedviaN—H...O and C—H...Cl hydrogen-bonding interactions, forming a three-dimensional network.
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Lehner, A., and C. Schlegel-Wagner. "Souvenir einer endoskopischen NNH-Operation." Laryngo-Rhino-Otologie 95, no. 09 (July 18, 2016): 636–38. http://dx.doi.org/10.1055/s-0042-107355.

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Bauer-Delto, Angelika. "Optimierte NNH-Chirurgie mit Powernavigation." HNO Nachrichten 43, no. 6 (December 2013): 44. http://dx.doi.org/10.1007/s00060-013-0226-0.

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Matsuura, Hideharu, Akinobu Takeshita, Tatsuya Imamura, Kota Takano, Kazuya Okuda, Atsuki Hidaka, Shi Yang Ji, et al. "Comparison of Conduction Mechanisms in Heavily Al-Doped 4H-SiC and Heavily Al- and N-Codoped 4H-SiC." Materials Science Forum 924 (June 2018): 188–91. http://dx.doi.org/10.4028/www.scientific.net/msf.924.188.

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The conduction mechanism in heavily Al-doped or heavily Al-and N-codoped p-type 4H-SiC epilayers was investigated. In both the singly-doped and codoped samples with an Al concentration (CAl) between 4x1019 and 2x1020 cm-3, band and nearest-neighbor hopping (NNH) conductions appeared in high and low temperature ranges, respectively. The codoping of N donors makes the NNH conduction dominant at temperatures higher than in the singly-doped samples. In both the singly-doped and codoped samples with CAl between 1x1019 and 4x1019 cm-3, an unexpected conduction appeared between the regions of the band and NNH conductions.
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Oussi, Ninos, Konstantinos Georgiou, Andreas Larentzakis, Dimitrios Thanasas, Markus Castegren, Evangelos Georgiou, and Lars Enochsson. "Validation of a Novel Needle Holder to Train Advanced Laparoscopy Skills to Novices in a Simulator Environment." Surgical Innovation 27, no. 2 (February 1, 2020): 211–19. http://dx.doi.org/10.1177/1553350619901222.

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Background. Our aim was to determine if a newly designed Najar needle holder (NNH) shortens the time for novices to improve advanced laparoscopy (AL) techniques (suturing/knot tying), compared with a conventional macro needle holder (MNH) in a simulator. Furthermore, we aimed to validate a new video scoring system determining AL skills. Methods. Forty-six medical students performed identical surgical tasks in a prospective, crossover study evaluating AL skills (NNH vs MNH). All subjects performed a double-throw knot, 2 single-throw knots following 3 running sutures in the Simball Box (SB) simulator. After resting, subjects switched needle holders. All tasks were videotaped and analyzed using SB software and by 2 independent reviewers using the Objective Video Evaluation Scoring Table (OVEST). Trial performance expressed as SB Overall Score (SBOS) and OVEST. Results. In the group starting with NNH (followed by MNH) OVEST was consistently high during both trials (median = 12.5, range = 6.5-18.0, and median = 13.5, range = 6.5-21.0; P = .2360). However, in the group starting with MNH, OVEST improved significantly when the participants changed to NNH (median = 10.0, range = 2.5-19.5, vs median = 14.5, range = 4.5-18.0; P = .0003); an improvement was also found with SBOS (median = 37%, range = 27% to 92%, vs median = 48%, range = 34% to 70%; P = .0289). In both trials, both independent reviewers’ OVEST measures correlated well: Trial 1: β = 0.97, P < .0001; and Trial 2: β = 0.95, P < .0001. A correlation also existed between SBOS and OVEST in both trials (β = 2.1, P < .0001; and β = 1.9, P = .0002). Conclusions. This study indicates a significantly higher improvement in laparoscopic suturing skills in novices training AL skills using NNH compared with MNH. Starting early, AL training in novices using NNH is a feasible option. Furthermore, OVEST used in experimental settings as an evaluation tool is comparable with the validated SBOS.
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George, Daniel J., A. Reginald Waldeck, Helen Guo, and Alexander J. Upton. "Number needed to harm (NNH) in patients with non-metastatic, castration-resistant prostate cancer (nmCRPC): A final analysis from the darolutamide (D), enzalutamide (E), and apalutamide (A) clinical trials." Journal of Clinical Oncology 40, no. 28_suppl (October 1, 2022): 326. http://dx.doi.org/10.1200/jco.2022.40.28_suppl.326.

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326 Background: Second generation androgen receptor inhibitors (ARI) D, A and E, approved for the treatment of nmCRPC, offer benefit in overall survival (OS) and metastasis-free survival (MFS), but do so with different risk-benefit profiles. Contextualizing risks of adverse events (AEs), or harm to patients, can be challenging. NNH is a trial-based measure that evaluates the number of patients who need to receive treatment before a harmful outcome occurs with the intervention, compared to the control. Thus, a higher NNH reflects a lower incremental likelihood of harm. This study is an update to a previous NNH analysis, utilizing final data from the ARI randomized controlled trials (RCTs). Methods: MEDLINE and EMBASE were searched for relevant RCTs. AEs occurring in ≥5% of either RCT arm were extracted from the final ARAMIS (D), SPARTAN (A) and PROSPER (E) publications. NNH by AE (all grade, grade 3 & 4) were calculated over the duration of each RCT based on reported rates, using the inverse of the absolute risk increase [1 / (experimental AE rate - control AE rate)]. An exploratory analysis considered the application of results to a US population, assuming trial-based AE rates to be representative of real-world rates. Results: Results show a trend of higher (i.e., favorable) NNH for AEs for D in ARAMIS across all grade and grade 3-4 AEs (Table), indicating a lower likelihood of incremental harm across AEs including fatigue, falls, hypertension and fracture for D versus A and E. Focusing on fatigue, fall and fractures, and selecting treatment with the highest (D) and lowest (A or E) NNH for an estimated 24,000 US high risk nmCRPC patients annually, treatment with D would translate to 4,073 fewer all-grade fatigue events, 2,928 fewer falls, and 2,383 fewer fractures compared to treatment with A (falls) or E (fatigue or fracture). Conclusions: The findings show a consistent trend of higher NNH (favorability) for D compared to A and E. The differences in their respective AE profiles are noteworthy not only for patients, but also for healthcare systems considering the overall risk-benefit amongst these three ARIs. Comparing D, A, and E directly in a single study may further inform their comparative profiles.[Table: see text]
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Wang, Qiying, and Ying Xiang Rachel Wang. "NONPARAMETRIC COINTEGRATING REGRESSION WITH NNH ERRORS." Econometric Theory 29, no. 1 (July 6, 2012): 1–27. http://dx.doi.org/10.1017/s0266466612000205.

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This paper studies a nonlinear cointegrating regression model with nonlinear nonstationary heteroskedastic error processes. We establish uniform consistency for the conventional kernel estimate of the unknown regression function and develop atwo-stage approach for the estimation of the heterogeneity generating function.
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Davis, John W., and Susan C. Weller. "Intensity of statin therapy and muscle symptoms: a network meta-analysis of 153 000 patients." BMJ Open 11, no. 6 (June 2021): e043714. http://dx.doi.org/10.1136/bmjopen-2020-043714.

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ObjectiveTo estimate relative risk (RR) of statin-associated musculoskeletal symptoms by statin therapy intensity.SettingNetwork meta-analysis assessing multicentre randomised controlled trials (RCTs) across several countries.ParticipantsPubMed, Web of Science, Cochrane database and ClinicalTrials.gov were searched through January 2021 for doubled-blinded RCTs testing the effect of statin therapy on lipids with at least 1000 participants and 2 years of intended treatment. Two coders assessed articles for final inclusion, quality and outcomes. Treatment intensity was categorised according to American Heart Association definitions.OutcomesPairwise and network meta-analysis (NMA) estimated RR and risk difference with random effects modelling. Heterogeneity was evaluated with the I2 statistic. Outcomes included muscle symptoms (any, myalgia and attrition due to muscle symptoms), rhabdomyolysis and elevated creatine kinase (CK) (>10 × upper limit of normal).ResultsOf 2919 RCTs, 24 (n=152 461) met inclusion criteria. NMA results indicated risk was significantly greater for high compared with moderate intensity statin therapy for any muscle problem (RR=1.04, 95% CI 1.00 to 1.07; I2=0%), myalgia (RR=1.04, 95% CI 1.00 to 1.08; I2=0%, number needed to harm (NNH)=173), attrition due to muscle problems (RR=1.37, 95% CI 1.09 to 1.73, I2=0%, NNH=218) and elevated CK (RR=4.69, 95% CI 2.50 to 8.80; I2=7%, NNH=527). Risk also was significantly higher for high intensity compared with placebo for any muscle problem (RR=1.05, 95% CI 1.01 to 1.09, I2=0%), myalgia (RR=1.13, 95% CI 1.05 to 1.23; I2=0%, NNH=182), attrition due to muscle problems (RR=1.55, 95% CI 1.15 to 2.08, I2=0%, NNH=187) and elevated CK (RR=5.37, 95% CI 2.48 to 11.61; I2=7%, NNH=589). Due to inconsistency of results across sensitivity analyses, estimates were inconclusive for rhabdomyolysis and CK. There were no significant differences in risk between moderate intensity therapy and placebo for all outcomes.ConclusionsFor approximately each 200 patients on high intensity statins, one additional patient may experience myalgia or discontinue therapy due to muscle problems compared with moderate intensity therapy.Trial registration numberCRD42019112758.
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Cainzos-Achirica, Miguel, Michael D. Miedema, John W. McEvoy, Mahmoud Al Rifai, Philip Greenland, Zeina Dardari, Matthew Budoff, et al. "Coronary Artery Calcium for Personalized Allocation of Aspirin in Primary Prevention of Cardiovascular Disease in 2019." Circulation 141, no. 19 (May 12, 2020): 1541–53. http://dx.doi.org/10.1161/circulationaha.119.045010.

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Background: Recent American College of Cardiology/American Heart Association Primary Prevention Guidelines recommended considering low-dose aspirin therapy only among adults 40 to 70 years of age who are at higher atherosclerotic cardiovascular disease (ASCVD) risk but not at high risk of bleeding. However, it remains unclear how these patients are best identified. The present study aimed to assess the value of coronary artery calcium (CAC) for guiding aspirin allocation for primary prevention by using 2019 aspirin meta-analysis data on cardiovascular disease relative risk reduction and bleeding risk. Methods: The study included 6470 participants from the MESA Study (Multi-Ethnic Study of Atherosclerosis). ASCVD risk was estimated using the pooled cohort equations, and 3 strata were defined: <5%, 5% to 20%, and >20%. All participants underwent CAC scoring at baseline, and CAC scores were stratified as =0, 1 to 99, ≥100, and ≥400. A 12% relative risk reduction in cardiovascular disease events was used for the 5-year number needed to treat (NNT 5 ) calculations, and a 42% relative risk increase in major bleeding events was used for the 5-year number needed to harm (NNH 5 ) estimations. Results: Only 5% of MESA participants would qualify for aspirin consideration for primary prevention according to the American College of Cardiology/American Heart Association guidelines and using >20% estimated ASCVD risk to define higher risk. Benefit/harm calculations were restricted to aspirin-naive participants <70 years of age not at high risk of bleeding (n=3540). The overall NNT 5 with aspirin to prevent 1 cardiovascular disease event was 476 and the NNH 5 was 355. The NNT 5 was also greater than or similar to the NNH 5 among estimated ASCVD risk strata. Conversely, CAC≥100 and CAC≥400 identified subgroups in which NNT 5 was lower than NNH 5 . This was true both overall (for CAC≥100, NNT 5 =140 versus NNH 5 =518) and within ASCVD risk strata. Also, CAC=0 identified subgroups in which the NNT 5 was much higher than the NNH 5 (overall, NNT 5 =1190 versus NNH 5 =567). Conclusions: CAC may be superior to the pooled cohort equations to inform the allocation of aspirin in primary prevention. Implementation of current 2019 American College of Cardiology/American Heart Association guideline recommendations together with the use of CAC for further risk assessment may result in a more personalized, safer allocation of aspirin in primary prevention. Confirmation of these findings in experimental settings is needed.
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Dissertations / Theses on the topic "NNH"

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Carlbark, Terese, and Magdalena Hirsch. "NNH - ur Stockholms läns kommuners perspektiv." Thesis, KTH, Geoinformatik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-168231.

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Åhman, Mikael. "Laserdata i skogsbruket : - och möjliga tillämpningar för privata skogsägare." Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-35410.

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Data retrieved from airborne laser scanning represents a new source of forest data. Today, the technology has matured so that it can function in an operational environment. The aim of this study was to compile areas of application of laserdata in forestry. Moreover to analyze costs and accessibility of laserdata. The goal was to provide private forest owners information to support assessments of possible benefits of laserdata. Data produced by Skogsstyrelsen and SLU seems to be useful for private forest owners. These data i.e. includes maps of digital terrain models, tree heights, stand volumes, tree diameters, basal areas and biomass. Today, the costs for airborne laser scanning are high for the private forest owners. Perhaps co- ordinations between forest owner organizations and other timber buying companies could solve this problem.
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Stigson, Jens. "Rekonstruktion av högsta kustlinjen (HK) med ny nationell höjdmodell (NNH) och LiDAR : En studie över västra Gästrikland." Thesis, Högskolan Dalarna, Geografi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:du-21165.

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Denna studie har med hjälp av den nya nationella höjdmodellen (NNH), som bygger på LiDAR-teknik, försökt att i västra Gästrikland hitta och analysera de landskaps- och terrängformer som kallas för högsta kustlinjen (HK). Dessa forna strandlinjer efter den senaste istiden har undersökts tidigare i studieområdet med hjälp av avvägningsinstrument och genom jordprover på 11 lokaler åren 1925-1930 och på 8 lokaler åren 1954-1960. I studien har det undersökts hur väl det går att identifiera nya som äldre HK-lokaler, jämföra de äldre undersökningarna med resultatet från dagens moderna datorteknik. Genom att i ett GIS-program skapa en terrängskuggning av NNH, som innan leverans har särskilt mark- och vattenytan från vegetation och antropogena objekt, har höjder kunnat mätas längs HK-linjer med cirka 50 meters avstånd. På grund av den snabba landhöjningen de första 500 åren efter avsmältningen är de högst belägna spåren av stranderosion svårare att hitta än de lägre. Av de 25 lokaler som hittades och analyserades var 11 lokaler på platser som inte tidigare undersökts eller där HK tidigare inte har kunnat fastställas. Av de undersökta lokalerna klassades 10 som osäkra, 11 som halvskarpa, 3 som skarpa och 1 som ett HK-delta. Från söder mot norr i västra Gästrikland stiger HK med cirka 27 meter från 194 meter över havet till 221 meter över havet. Skillnaderna jämfört med de tidigare undersökningarna är cirka ±2 meter, med undantag för 4 lokaler med skillnader från cirka 4 meter över till cirka 10 meter under. Förutom de 25 lokalerna hittades 6 mycket osäkra lokaler där HK inte gick att fastställa. Av dessa ligger 5 i ett område nordost och öster om Hofors. LiDAR-tekniken ger kvantitativt fler lokaler i områden som eventuellt tidigare inte har kunnat besökas och är en mer tidseffektiv metod.
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Pankau, Andreas [Verfasser]. "Verifizierung und Validierung eines navigiert-kontrollierten Shavers in der NNH-Chirurgie : Vergleich mit einem konventionellen und einem konventionell-navigierten Shaver / Andreas Pankau." München : GRIN Verlag, 2008. http://d-nb.info/1183485654/34.

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Kulla, Hanna, and Maria Mörtberg. "Vegetation och lutningars påverkan på osäkerheten hos laserdata för en ny nationell höjdmodell." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-12027.

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Lantmäteriet har fått i uppdrag att ta fram en Ny Nationell Höjdmodell (NNH) över Sverige. Höjddata samlas in med flygburen laserskanning (FLS) och osäkerheten i höjd ligger generellt sett under 0,1 m på hårda plana ytor, dock kan osäkerheten öka avsevärt i terrängtyper med tät vegetation eller i områden med starkt sluttande terräng. Syftet med detta examensarbete är att kontrollera hur osäkerheten påverkas av olika vegetationstyper samt olika lutningsgrader. Provningen utfördes i delar av Avesta och Hedemora kommun i april 2012, där nio olika provytor kontrollerades enligt den tekniska specifikationen SIS-TS 21145:2007 ”Byggmätning – Statistisk provning av digital terrängmodell”. Kontrollprofiler mättes in i provytorna med Nätverks Real Time Kinematic Global Navigation Satellite System (NRTK-GNSS) för de provytor detta var möjligt, övriga provytor inmättes med totalstation. Analysen genomfördes i programvaran TerraScan där triangulerat laserdata jämfördes mot inmätta kontrollprofiler. Resultatet visar att laserdata ligger högre än markytan för alla provytor. Medelavvikelsen för de olika vegetationstyperna ligger mellan 0,105 och 0,593 m där systematiska avvikelser upptäcktes i flera provytor. För de olika lutningsgraderna ligger medelavvikelsen mellan 0,024 och 0,122 m, där en tydlig ökning sker vid 40 graders lutning. Troliga orsaker till de medelavvikelser som erhållits för vegetationstyperna är att punkter felaktigt klassificerats som mark, samt att det i vissa fall helt saknas punkter på markytan. För provytan med 40 graders lutning beror medelavvikelsen troligen på att det horisontella felet har inverkat på det vertikala. Tät vegetation påverkar osäkerheten i höjd men något tydligt samband mellan lutningsgrad och osäkerhet kan inte ses.
Lantmäteriet – the Swedish mapping, cadastral and land registration authority, has been commissioned to develop a new national elevation model of Sweden and the data is collected by airborne laser scanning. The uncertainty in height is generally less than 0,1 m on hard, flat surfaces but in terrain with dense vegetation and areas with high inclination the uncertainty can increase significantly. The purpose of this study is to check how the uncertainty is affected by different vegetation types and different degrees of inclination. The control was performed in parts of Avesta and Hedemora municipality in April 2012, where nine different plots were checked according to the technical specification SIS-TS 21145:2007 “Engineering survey for construction works – Statistical test of digital terrain model”. Profiles were measured with Network Real Time Kinematic Global Navigation Satellite System (NRTK-GNSS) where possible, and otherwise a total station was used. The analysis was performed in the software TerraScan in which triangulated laser data were compared with the control profiles. The result shows that laser measured heights are higher than the actual surface. The average deviation of the different vegetation types range from 0,150 to 0,593 m and a systematic deviation was detected in some sample surfaces. For the different slope rates the average deviation ranged from 0,024 to 0,122 m where a clear increase could be seen at 40 degrees inclination. Likely reasons for the deviations obtained for different vegetation types are that points incorrectly has been classified as ground, and that in some cases points on the ground are completely missing. The mean deviation for the sample surface with 40 degrees inclination is probably due to the influence of a horizontal error on the vertical error. Dense vegetation affects the uncertainty in height, but no apparent relationship between inclination and uncertainty can be seen.
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Löfquist, Johanna. "Höjdmodellering med laserdata : Studie av Kärsön, Ekerö med fokus på upplösning, datalagring samt programvara." Thesis, KTH, Samhällsplanering och miljö, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-90307.

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The New National Elevation Model (NNH) is a new high-resolution digital elevation model (DEM) of Sweden from airborne laser scanning. It creates many new opportunities, particularly in the area of flood mapping. NNH is provided by Lantmäteriet in two formats, both in raw LIDAR (Light Detection and Ranging) data and in grid format with two meter resolution. These alternatives have advantages and disadvantages and the aim of this thesis research is to identify these. One of the focuses of the study is data storage and thus data structure analysis, resolution and storage facilities. The research questions are: Why and in what context the different NNH-products from the National Land Survey are used (DEM 2+ or point cloud)? What constraints and opportunities are created by the different options, mainly in terms of different software, resolution, and data storage? The study area is Kärsön in Ekerö municipality located in Stockholms län and has an approximate area of 25 square kilometers. The study is divided into two parts. The first objective is to identify the consequences of using different software to create DEM from pointcloud compared to the DEM2+ model. Height models with a two meter resolution are created in FME and ArcGIS. The models are then compared with the grid from Lantmäteriet, created in TerraScan. The second objective is to examine the impact of the change in resolution, both the storage aspect and both the accuracy aspect. Inverse Distance Weighted (IDW) is an interpolation method which in previous studies proved to have the best results on high resolution LIDAR data. This model was tested and compared with a model from FMEs built-in function and the model from Lantmäteriet wich are based on triangulation (also proved a good method in previous studies).  The grid created in TerraScan has good properties such as accuracy. The results show that the built-in ArcGIS model is not sufficient for the purposes of the model. Flood mapping requires continuous surfaces and the model lacks large areas of data. However, there are other aspects such as the break lines, these cannot be added to the TerraScan model or in the IDW but in the FME-modeler it is possible. In addition, it is not possible to edit the model that is delivered from Lantmäteriet. If there are outliers in the data, they will have much impact on the result. With a model created from the point cloud it is easy to remove these outliers. Increased resolution gives a quadratic increase in storage space so it is considered important not to use a resolution that is not really necessary.  If the purpose of the analysis requires higher resolution than two meters it is possible to achieve higher accuracy for areas with high point density. The raw data format also provides opportunities to create additional models with other uses, building models or forest inventory application can for example be extracted from the data. If the purpose is that the finished grid model is adequate, there is no direct reason to spend time creating a new model. But for a user with knowledge of laser data structure and processing, creating elevation models from raw LIDAR data could give advantages.
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von, Hackwitz Kim, and Niklas Stenbäck. "Changing Landscapes – A GIS analysis of Neolithic site location and shore displacement in Eastern Central Sweden." Uppsala universitet, Institutionen för arkeologi och antik historia, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-200090.

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This article is an attempt to put forward the use of new digital techniques and data for understanding prehistoric landscapes. The starting point is that the specific characteristics of the landscape and of the sites included affect the interpretation. One character is the contemporary landscape and its topographies. Ancient landscapes can be successfully recreated digitally using GIS. By applying GIS methodology, a regression equation and new data, we reinvestigated an hypothesis proposed by Welinder in 1978 concerning the acculturation of the Pitted Ware Culture. The results indicate that a reconstruction of the landscape may alter the understanding of the Neolithic land use and the question of the relocation and termination of the Pitted Ware Culture at the end of Middle Neolithic B.
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Drezen, Thierry. "Nouveaux oxydes mesoporeux a base de silice modifies par le vanadium et le fer pour la catalyse heterogene. Synthese hydrothermale de nouveaux oxydes de vanadium et de molybdene textures par des diamines : (nh#2(ch#2)#nnh#2) (n 2, 3, 6, 8)." Nantes, 1998. http://www.theses.fr/1998NANT2065.

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A la suite des premiers travaux de kresge et coll. Sur les mesoporeux, si-mcm-41, obtenus par effet template de molecules amphiphiles, nous avons choisi, dans une premiere partie, de preparer des mesoporeux type mcm-41 modifies par le vanadium et le fer pour leur interet potentiel en catalyse d'oxydation heterogene. Les phases ont ete preparees in-situ et par impregnation. De nombreuses techniques de caracterisation : diffraction rx sur poudre, mesures de surface specifique b. E. T. Et de porosite ; spectroscopies ir, raman, rmn (#5#1v, #2#9si, #1h) et mossbauer (#5#7fe) ont permis de preciser le degre d'oxydation du fer et du vanadium, leur geometrie de site et leur repartition au sein du mesoporeux. Des tests catalytiques d'oxydation du toluene par l'eau oxygenee en milieu aqueux sur les phases au fer et d'oxydation deshydrogenante du propane en propene, a faible taux de conversion, effectues a 400c sur les phases au vanadium ont permis de preciser l'effet de dispersion des especes. Dans une seconde partie, des oxydes bronze de vanadium textures par les diamino-hexane et -octane ont ete prepares par voie hydrothermale et caracterises. La structure est formee de clusters v#1#5o#3#6(cl) stabilises par interactions avec les cations alkyldiammonium avec lesquels ils partagent des liaisons hydrogene. L'anion cl est encapsule au centre d'une cage polyoxovanadique. Deux oxydes de molybdene, un bronze et un oxyde non reduit ont ete egalement textures respectivement par l'ethylenediamine et le diaminopropane. Le double role d'agent reducteur et d'espece texturant des diamines a fait l'objet d'une discussion pour les deux systemes hybrides au vanadium et au molybdene.
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9

Haworth, Naomi Louise. "Quantum Chemical Studies of Thermochemistry, Kinetics and Molecular Structure." Thesis, The University of Sydney, 2003. http://hdl.handle.net/2123/509.

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This thesis is concerned with a range of chemical problems which are amenable to theoretical investigation via the application of current methods of computational quantum chemistry. These problems include the calculation of accurate thermochemical data, the prediction of reaction kinetics, the study of molecular potential energy surfaces, and the investigation of molecular structures and binding. The heats of formation (from both atomisation energies and isodesmic schemes) of a set of approximately 120 C1 and C2 fluorocarbons and oxidised fluorocarbons (along with C3F6 and CF3CHFCF2) were calculated with the Gaussian-3 (G3) method (along with several approximations thereto). These molecules are of importance in the flame chemistry of 2-H-heptafluoropropane, which has been proposed as a potential fire retardant with which to replace chloro- and bromofluorocarbons (CFC�s and BFC�s). The calculation of the data reported here was carried out in parallel with the modelling studies of Hynes et al.1-3 of shock tube experiments on CF3CHFCF3 and on C3F6 with either hydrogen or oxygen atoms. G3 calculations were also employed in conjunction with the experimental work of Owens et al.4 to describe the pyrolysis of CFClBr2 (giving CFCl) at a radiation wavelength of 265 nm. The theoretical prediction of the dissociation energy of the two C-Br bonds was found to be consistent with the energy at which carbene production was first observed, thus supporting the hypothesis that the pyrolysis releases two bromine radicals (rather than a Br2 molecule). On the basis of this interpretation of the experiments, the heat of formation of CFClBr2 is predicted to be 184 � 5 kJ mol-1, in good agreement with the G3 value of 188 � 5 kJ mol-1. Accurate thermochemical data was computed for 18 small phosphorus containing molecules (P2, P4, PH, PH2, PH3, P2H2, P2H4, PO, PO2, PO3, P2O, P2O2, HPO, HPOH, H2POH, H3PO, HOPO and HOPO2), most of which are important in the reaction model introduced by Twarowski5 for the combustion of H2 and O2 in the presence of phosphine. Twarowski reported that the H + OH recombination reaction is catalysed by the combustion products of PH3 and proposed two catalytic cycles, involving PO2, HOPO and HOPO2, to explain this observation. Using our thermochemical data we computed the rate coefficients of the most important reactions in these cycles (using transition state and RRKM theories) and confirmed that at 2000K both cycles have comparable rates and are significantly faster than the uncatalysed H + OH recombination. The heats of formation used in this work on phosphorus compounds were calculated using the G2, G3, G3X and G3X2 methods along with the far more extensive CCSD(T)/CBS type scheme. The latter is based on the evaluation of coupled cluster energies using the correlation consistent triple-, quadruple- and pentuple-zeta basis sets and extrapolation to the complete basis set (CBS) limit along with core-valence correlation corrections (with counterpoise corrections for phosphorus atoms), scalar relativistic corrections and spin-orbit coupling effects. The CCSD(T)/CBS results are consistent with the available experimental data and therefore constitute a convenient set of benchmark values with which to compare the more approximate Gaussian-n results. The G2 and G3 methods were found to be of comparable accuracy, however both schemes consistently underestimated the benchmark atomisation energies. The performance of G3X is significantly better, having a mean absolute deviation (MAD) from the CBS results of 1.8 kcal mol-1, although the predicted atomisation energies are still consistently too low. G3X2 (including counterpoise corrections to the core-valence correlation energy for phosphorus) was found to give a slight improvement over G3X, resulting in a MAD of 1.5 kcal mol-1. Several molecules were also identified for which the approximations underlying the Gaussian-n methodologies appear to be unreliable; these include molecules with multiple or strained P-P bonds. The potential energy surface of the NNH + O system was investigated using density functional theory (B3LYP/6-31G(2df,p)) with the aim of determining the importance of this route in the production of NO in combustion reactions. In addition to the standard reaction channels, namely decomposition into NO + NH, N2 + OH and H + N2O via the ONNH intermediate, several new reaction pathways were also investigated. These include the direct abstraction of H by O and three product channels via the intermediate ONHN, giving N2 + OH, H + N2O and HNO + N. For each of the species corresponding to stationary points on the B3LYP surface, valence correlated CCSD(T) calculations were performed with the aug-cc-pVxZ (x = Q, 5) basis sets and the results extrapolated to the complete basis set limit. Core-valence correlation corrections, scalar relativistic corrections and spin orbit effects were also included in the resulting energetics and the subsequent calculation of thermochemical data. Heats of formation were also calculated using the G3X method. Variational transition state theory was used to determine the critical points for the barrierless reactions and the resulting B3LYP energetics were scaled to be compatible with the G3X and CCSD(T)/CBS values. As the results of modelling studies are critically dependent on the heat of formation of NNH, more extensive CCSD(T)/CBS calculations were performed for this molecule, predicting the heat of formation to be 60.6 � 0.5 kcal mol-1. Rate coefficients for the overall reaction processes were obtained by the application of multi-well RRKM theory. The thermochemical and kinetic results thus obtained were subsequently used in conjunction with the GRIMech 3.0 reaction data set in modelling studies of combustion systems, including methane / air and CO / H2 / air mixtures in completely stirred reactors. This study revealed that, contrary to common belief, the NNH + O channel is a relatively minor route for the production of NO. The structure of the inhibitor Nd-(N'-Sulfodiaminophosphinyl)-L-ornithine, PSOrn, and the nature of its binding to the OTCase enzyme was investigated using density functional (B3LYP) theory. The B3LYP/6-31G(d) calculations on the model compound, PSO, revealed that, while this molecule could be expected to exist in an amino form in the gas phase, on complexation in the active site of the enzyme it would be expected to lose two protons to form a dinegative imino tautomer. This species is shown to bind strongly to two H3CNHC(NH2)2+ moieties (model compounds for arginine residues), indicating that the strong binding observed between inhibitor and enzyme is partially due to electrostatic interactions as well as extensive hydrogen bonding (both model Arg+ residues form hydrogen bonds to two different sites on PSO). Population analysis and hydrogen bonding studies have revealed that the intramolecular bonding in this species consists of either single or semipolar bonds (that is, S and P are not hypervalent) and that terminal oxygens (which, being involved in semipolar bonds, carry negative charges) can be expected to form up to 4 hydrogen bonds with residues in the active site. In the course of this work several new G3 type methods were proposed, including G3MP4(SDQ) and G3[MP2(Full)], which are less expensive approximations to G3, and G3X2, which is an extension of G3X designed to incorporate additional electron correlation. As noted earlier, G3X2 shows a small improvement on G3X; G3MP4(SDQ) and G3[MP2(Full)], in turn, show good agreement with G3 results, with MAD�s of ~ 0.4 and ~ 0.5 kcal mol-1 respectively. 1. R. G. Hynes, J. C. Mackie and A. R. Masri, J. Phys. Chem. A, 1999, 103, 5967. 2. R. G. Hynes, J. C. Mackie and A. R. Masri, J. Phys. Chem. A, 1999, 103, 54. 3. R. G. Hynes, J. C. Mackie and A. R. Masri, Proc. Combust. Inst., 2000, 28, 1557. 4. N. L. Owens, Honours Thesis, School of Chemistry, University of Sydney, 2001. 5. A. Twarowski, Combustion and Flame, 1995, 102, 41.
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Haworth, Naomi Louise. "Quantum Chemical Studies of Thermochemistry, Kinetics and Molecular Structure." University of Sydney. Chemistry, 2003. http://hdl.handle.net/2123/509.

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This thesis is concerned with a range of chemical problems which are amenable to theoretical investigation via the application of current methods of computational quantum chemistry. These problems include the calculation of accurate thermochemical data, the prediction of reaction kinetics, the study of molecular potential energy surfaces, and the investigation of molecular structures and binding. The heats of formation (from both atomisation energies and isodesmic schemes) of a set of approximately 120 C1 and C2 fluorocarbons and oxidised fluorocarbons (along with C3F6 and CF3CHFCF2) were calculated with the Gaussian-3 (G3) method (along with several approximations thereto). These molecules are of importance in the flame chemistry of 2-H-heptafluoropropane, which has been proposed as a potential fire retardant with which to replace chloro- and bromofluorocarbons (CFC�s and BFC�s). The calculation of the data reported here was carried out in parallel with the modelling studies of Hynes et al.1-3 of shock tube experiments on CF3CHFCF3 and on C3F6 with either hydrogen or oxygen atoms. G3 calculations were also employed in conjunction with the experimental work of Owens et al.4 to describe the pyrolysis of CFClBr2 (giving CFCl) at a radiation wavelength of 265 nm. The theoretical prediction of the dissociation energy of the two C-Br bonds was found to be consistent with the energy at which carbene production was first observed, thus supporting the hypothesis that the pyrolysis releases two bromine radicals (rather than a Br2 molecule). On the basis of this interpretation of the experiments, the heat of formation of CFClBr2 is predicted to be 184 � 5 kJ mol-1, in good agreement with the G3 value of 188 � 5 kJ mol-1. Accurate thermochemical data was computed for 18 small phosphorus containing molecules (P2, P4, PH, PH2, PH3, P2H2, P2H4, PO, PO2, PO3, P2O, P2O2, HPO, HPOH, H2POH, H3PO, HOPO and HOPO2), most of which are important in the reaction model introduced by Twarowski5 for the combustion of H2 and O2 in the presence of phosphine. Twarowski reported that the H + OH recombination reaction is catalysed by the combustion products of PH3 and proposed two catalytic cycles, involving PO2, HOPO and HOPO2, to explain this observation. Using our thermochemical data we computed the rate coefficients of the most important reactions in these cycles (using transition state and RRKM theories) and confirmed that at 2000K both cycles have comparable rates and are significantly faster than the uncatalysed H + OH recombination. The heats of formation used in this work on phosphorus compounds were calculated using the G2, G3, G3X and G3X2 methods along with the far more extensive CCSD(T)/CBS type scheme. The latter is based on the evaluation of coupled cluster energies using the correlation consistent triple-, quadruple- and pentuple-zeta basis sets and extrapolation to the complete basis set (CBS) limit along with core-valence correlation corrections (with counterpoise corrections for phosphorus atoms), scalar relativistic corrections and spin-orbit coupling effects. The CCSD(T)/CBS results are consistent with the available experimental data and therefore constitute a convenient set of benchmark values with which to compare the more approximate Gaussian-n results. The G2 and G3 methods were found to be of comparable accuracy, however both schemes consistently underestimated the benchmark atomisation energies. The performance of G3X is significantly better, having a mean absolute deviation (MAD) from the CBS results of 1.8 kcal mol-1, although the predicted atomisation energies are still consistently too low. G3X2 (including counterpoise corrections to the core-valence correlation energy for phosphorus) was found to give a slight improvement over G3X, resulting in a MAD of 1.5 kcal mol-1. Several molecules were also identified for which the approximations underlying the Gaussian-n methodologies appear to be unreliable; these include molecules with multiple or strained P-P bonds. The potential energy surface of the NNH + O system was investigated using density functional theory (B3LYP/6-31G(2df,p)) with the aim of determining the importance of this route in the production of NO in combustion reactions. In addition to the standard reaction channels, namely decomposition into NO + NH, N2 + OH and H + N2O via the ONNH intermediate, several new reaction pathways were also investigated. These include the direct abstraction of H by O and three product channels via the intermediate ONHN, giving N2 + OH, H + N2O and HNO + N. For each of the species corresponding to stationary points on the B3LYP surface, valence correlated CCSD(T) calculations were performed with the aug-cc-pVxZ (x = Q, 5) basis sets and the results extrapolated to the complete basis set limit. Core-valence correlation corrections, scalar relativistic corrections and spin orbit effects were also included in the resulting energetics and the subsequent calculation of thermochemical data. Heats of formation were also calculated using the G3X method. Variational transition state theory was used to determine the critical points for the barrierless reactions and the resulting B3LYP energetics were scaled to be compatible with the G3X and CCSD(T)/CBS values. As the results of modelling studies are critically dependent on the heat of formation of NNH, more extensive CCSD(T)/CBS calculations were performed for this molecule, predicting the heat of formation to be 60.6 � 0.5 kcal mol-1. Rate coefficients for the overall reaction processes were obtained by the application of multi-well RRKM theory. The thermochemical and kinetic results thus obtained were subsequently used in conjunction with the GRIMech 3.0 reaction data set in modelling studies of combustion systems, including methane / air and CO / H2 / air mixtures in completely stirred reactors. This study revealed that, contrary to common belief, the NNH + O channel is a relatively minor route for the production of NO. The structure of the inhibitor Nd-(N'-Sulfodiaminophosphinyl)-L-ornithine, PSOrn, and the nature of its binding to the OTCase enzyme was investigated using density functional (B3LYP) theory. The B3LYP/6-31G(d) calculations on the model compound, PSO, revealed that, while this molecule could be expected to exist in an amino form in the gas phase, on complexation in the active site of the enzyme it would be expected to lose two protons to form a dinegative imino tautomer. This species is shown to bind strongly to two H3CNHC(NH2)2+ moieties (model compounds for arginine residues), indicating that the strong binding observed between inhibitor and enzyme is partially due to electrostatic interactions as well as extensive hydrogen bonding (both model Arg+ residues form hydrogen bonds to two different sites on PSO). Population analysis and hydrogen bonding studies have revealed that the intramolecular bonding in this species consists of either single or semipolar bonds (that is, S and P are not hypervalent) and that terminal oxygens (which, being involved in semipolar bonds, carry negative charges) can be expected to form up to 4 hydrogen bonds with residues in the active site. In the course of this work several new G3 type methods were proposed, including G3MP4(SDQ) and G3[MP2(Full)], which are less expensive approximations to G3, and G3X2, which is an extension of G3X designed to incorporate additional electron correlation. As noted earlier, G3X2 shows a small improvement on G3X; G3MP4(SDQ) and G3[MP2(Full)], in turn, show good agreement with G3 results, with MAD�s of ~ 0.4 and ~ 0.5 kcal mol-1 respectively. 1. R. G. Hynes, J. C. Mackie and A. R. Masri, J. Phys. Chem. A, 1999, 103, 5967. 2. R. G. Hynes, J. C. Mackie and A. R. Masri, J. Phys. Chem. A, 1999, 103, 54. 3. R. G. Hynes, J. C. Mackie and A. R. Masri, Proc. Combust. Inst., 2000, 28, 1557. 4. N. L. Owens, Honours Thesis, School of Chemistry, University of Sydney, 2001. 5. A. Twarowski, Combustion and Flame, 1995, 102, 41.
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Books on the topic "NNH"

1

Nah, āʼīn̲ nah: Shāʻirī. Gāndhīnagar: Arjanu Ḥāsidu, 2009.

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Nah nah burī bāt. Lāhaur: Sāgar Pablisharz, 2009.

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Maruoka, Daiji. Noh. Osaka, Japan: Hoikusha Publishing, 1992.

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Nah! Pārīs: Nashr-i Nākujā, 2015.

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Maruoka, Daiji. Noh. Osaka: Hoikusha, 1990.

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Nah ābī nah khākī: Rumān. Tihrān: Ḥawzah-ʼi Hunarī, Sāzmān-i Tablīghāt-i Islāmī, 1996.

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Muʾaz̲z̲inī, ʻAlī. Nah ābī nah khākī: Rumān. Tihrān: Ḥawzah-ʾi Hunarī, Sāzmān-i Tablīghāt-i Islāmī, 1996.

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Hasija, Hans Holaram, ed. Nah Lailā nah Majnū: Kahāṇiyūn. Bambaʼī: Baisṭ Sindhī Sabhā, 1987.

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Vahhābīyat, nah Shīʻah, nah Sunnī. Tihrān: Nashr-i Rāh-i Nīkān, 2014.

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Nah sava rangu, nah sā surhāṇu. Ulhāsnagar: Sindhī Ṭāʼīms Pablīkeshani, 1987.

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Book chapters on the topic "NNH"

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Andrews, Anne M., Greg A. Gerhardt, Lynette C. Daws, Mohammed Shoaib, Barbara J. Mason, Charles J. Heyser, Luis De Lecea, et al. "NNH." In Encyclopedia of Psychopharmacology, 901. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-68706-1_4420.

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Lane, J. D., C. J. Pickett, and D. R. Stanley. "Synthesis of Diazenido Complexes, -NNH and -NNR." In Inorganic Reactions and Methods, 108–9. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145227.ch79.

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Greess, Holger, and Sabrina Kösling. "Nasennebenhöhlen (NNH), vordere und zentrale Schädelbasis." In Bildgebung HNO-Heilkunde, 161–292. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-89571-8_2.

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Bisdas, S., M. B. Bloching, H. Claassen, M. Fischer, J. Gille, J. G. Heckmann, A. Hemprich, et al. "Nase, Nasennebenhöhlen (NNH), Gesicht und vordere Schädelbasis." In Facharztwissen HNO-Heilkunde, 319–432. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89441-4_5.

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Jin, Liang, Nick Koudas, and Chen Li. "NNH: Improving Performance of Nearest-Neighbor Searches Using Histograms." In Advances in Database Technology - EDBT 2004, 385–402. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-24741-8_23.

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Truppe, M., and H. Stammberger. "3D-Navigation: Eine neue Orientierungshilfe bei endoskopischen NNH-und Schädelbasisoperationen." In Sitzungsbericht, 230. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-85188-9_199.

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Claassen, Horst, Friedrich Paulsen, Abel Jan Tasman, Thomas Hummel, Josef G. Heckmann, Michael Reiß, Gilfe Reiß, Rainer Keerl, Sotirios Bisdas, and Johann-Martin Hempel. "Nase, Nasennebenhöhlen (NNH), Gesicht und vordere Schädelbasis – Anatomie, physiologische Grundlagen und Diagnostik." In Facharztwissen HNO-Heilkunde, 443–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-58178-0_26.

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Hosemann, Werner, Abel Jan Tasman, Michael Reiß, Christoph Klingmann, Gilfe Reiß, Stefan Mattheis, Frank Tavassol, et al. "Erkrankungen der inneren Nase, der Nasennebenhöhlen (NNH), des Mittelgesichts und der vorderen Schädelbasis." In Facharztwissen HNO-Heilkunde, 501–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-58178-0_28.

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Mamalakis, Antonios, Imme Ebert-Uphoff, and Elizabeth A. Barnes. "Explainable Artificial Intelligence in Meteorology and Climate Science: Model Fine-Tuning, Calibrating Trust and Learning New Science." In xxAI - Beyond Explainable AI, 315–39. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04083-2_16.

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AbstractIn recent years, artificial intelligence and specifically artificial neural networks (NNs) have shown great success in solving complex, nonlinear problems in earth sciences. Despite their success, the strategies upon which NNs make decisions are hard to decipher, which prevents scientists from interpreting and building trust in the NN predictions; a highly desired and necessary condition for the further use and exploitation of NNs’ potential. Thus, a variety of methods have been recently introduced with the aim of attributing the NN predictions to specific features in the input space and explaining their strategy. The so-called eXplainable Artificial Intelligence (XAI) is already seeing great application in a plethora of fields, offering promising results and insights about the decision strategies of NNs. Here, we provide an overview of the most recent work from our group, applying XAI to meteorology and climate science. Specifically, we present results from satellite applications that include weather phenomena identification and image to image translation, applications to climate prediction at subseasonal to decadal timescales, and detection of forced climatic changes and anthropogenic footprint. We also summarize a recently introduced synthetic benchmark dataset that can be used to improve our understanding of different XAI methods and introduce objectivity into the assessment of their fidelity. With this overview, we aim to illustrate how gaining accurate insights about the NN decision strategy can help climate scientists and meteorologists improve practices in fine-tuning model architectures, calibrating trust in climate and weather prediction and attribution, and learning new science.
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Ivanov, Radoslav, Taylor Carpenter, James Weimer, Rajeev Alur, George Pappas, and Insup Lee. "Verisig 2.0: Verification of Neural Network Controllers Using Taylor Model Preconditioning." In Computer Aided Verification, 249–62. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-81685-8_11.

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AbstractThis paper presents Verisig 2.0, a verification tool for closed-loop systems with neural network (NN) controllers. We focus on NNs with tanh/sigmoid activations and develop a Taylor-model-based reachability algorithm through Taylor model preconditioning and shrink wrapping. Furthermore, we provide a parallelized implementation that allows Verisig 2.0 to efficiently handle larger NNs than existing tools can. We provide an extensive evaluation over 10 benchmarks and compare Verisig 2.0 against three state-of-the-art verification tools. We show that Verisig 2.0 is both more accurate and faster, achieving speed-ups of up to 21x and 268x against different tools, respectively.
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Conference papers on the topic "NNH"

1

Calzetta, Luigino, Marina Aiello, Paola Rogliani, and Alfredo Chetta. "Dexamethasone in patients hospitalized with COVID-19: a NNT and NNH analysis of RECOVERY study." In ERS International Congress 2021 abstracts. European Respiratory Society, 2021. http://dx.doi.org/10.1183/13993003.congress-2021.pa815.

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Grossi, AS, J. Lindemann, TK Hoffmann, and F. Sommer. "Offene Zugangswege im Rahmen von endoskopischen NNH-Operationen." In Abstract- und Posterband – 90. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Digitalisierung in der HNO-Heilkunde. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1686664.

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Scheich, M., and R. Hagen. "Klinische Erfahrungen mit selbstexpandierenden resorbierbaren Mometason-Stents in der NNH-Chirurgie." In Abstract- und Posterband – 90. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Digitalisierung in der HNO-Heilkunde. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1686685.

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Reinhardt, S., I. Stenin, M. Wagenmann, C. Plettenberg, and J. Schipper. "Versuch der Isolierung von Indikationsgebenden Patientenparametern zur NNH-OP bei akuter Meningitis." In Abstract- und Posterband – 90. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Digitalisierung in der HNO-Heilkunde. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1686683.

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Chalmers, J. D., M. L. Metersky, J. Feliciano, C. Fernandez, A. Teper, A. Maes, M. Hassan, and A. Chatterjee. "Brensocatib for the Treatment of Non-Cystic Fibrosis Bronchiectasis (NCFBE): Number Needed to Treat (NNT) and Number Needed to Harm (NNH)." In American Thoracic Society 2022 International Conference, May 13-18, 2022 - San Francisco, CA. American Thoracic Society, 2022. http://dx.doi.org/10.1164/ajrccm-conference.2022.205.1_meetingabstracts.a4778.

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Aquil, Mohd Minhajuddin, and Mir Iqbal Faheem. "Comparative Study on Spatial Clustering Methods for Identifying Traffic Accident Hotspots." In International Web Conference in Civil Engineering for a Sustainable Planet. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.112.64.

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Traffic accidents in an urban road network are inevitable as a result claims and disputes arise among different road users. It is imperative to estimate the likelihood of traffic accidents resulting from different factors that contribute to loss of life, property and health of road users. There is a pressing need to reduce traffic accidents by identifying the location of accident hotspots using suitable analysis methods and examining them which is essential for the safety of road users. In this research traffic accident hotspots are identified using two spatial clustering analysis methods namely Getis-Ord Gi* and Nearest Neighborhood Hierarchy (NNH). These methods are compared and evaluated using the Prediction Accuracy Index (PAI) for their degree of accuracy. In this study, a cumulative traffic accident data of Hyderabad city of Telangana state over four years is researched upon and considered. Getis-Ord Gi* analysis measures the concentration ratio based on Z score identified as high (positive Z-values) and low values (negative Z-values). NNH analysis is another spatial clustering method which displays hotspot regions in the form of Convex hulls and Ellipses. The choice of the above two clustering methods represents the significance of the precision required. The findings of the study reveal that NNH method performed better compared to Getis-Ord Gi* method in its ability to detect hotspots. The above research methodology can be performed to any size of road network area globally having relevant accident data for the identification of hotspots for reducing the traffic accidents.
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Reinhardt, S., I. Stenin, M. Wagenmann, C. Plettenberg, and J. Schipper. "Attempt to isolate indication-giving patient parameters for NNH surgery in acute meningitis." In Abstract- und Posterband – 90. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Digitalisierung in der HNO-Heilkunde. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1686745.

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Marras, T. K., M. Hassan, K. C. Mange, M. Ciesielska, S. Dhar Sonnenahalli, Z. Jumadilova, and A. Chatterjee. "ALIS (Amikacin Liposome Inhalation Suspension) for the Treatment of Patients with Refractory Mycobacterium avium Complex Lung Disease (MACLD) the Number Needed to Treat (NNT) and Number Needed to Harm (NNH)." In American Thoracic Society 2021 International Conference, May 14-19, 2021 - San Diego, CA. American Thoracic Society, 2021. http://dx.doi.org/10.1164/ajrccm-conference.2021.203.1_meetingabstracts.a1195.

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Duong Dinh, TA, J. Ilgner, and M. Westhofen. "Erste Erfahrungen und Ergebnisse in der endoskopischen NNH-Operation mit Applikation eines Mometason-Stent in der Behandlung von Patienten mit chronischer Sinusitis mit Polyposis." In Abstract- und Posterband – 89. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Forschung heute – Zukunft morgen. Georg Thieme Verlag KG, 2018. http://dx.doi.org/10.1055/s-0038-1640830.

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Novosselov, Igor V., and Philip C. Malte. "Development and Application of an Eight-Step Global Mechanism for CFD and CRN Simulations of Lean-Premixed Combustors." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27990.

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In this paper, the development of an eight-step global chemical kinetic mechanism for methane oxidation with nitric oxide formation in lean-premixed combustion at elevated pressures is described and applied. In particular, the mechanism has been developed for use in computational fluid dynamics (CFD) and chemical reactor network (CRN) simulations of combustion in lean-premixed gas turbine engines. Special attention is focused on the ability of the mechanism to predict NOx and CO exhaust emissions. Applications of the eight-step mechanism are reported in the paper, all for high-pressure, lean-premixed, methane-air (or natural gas-air) combustion. The eight steps of the mechanism are as follows: 1. Oxidation of the methane fuel to CO and H2O. 2. Oxidation of the CO to CO2. 3. Dissociation of the CO2 to CO. 4. Flame NO formation by the Zeldovich and nitrous oxide mechanisms. 5. Flame NO formation by the prompt and NNH mechanisms. 6. Post-flame NO formation by equilibrium H-atom attack on equilibrium N2O. 7. Post-flame NO formation by equilibrium O-atom attack on equilibrium N2O. 8. Post-flame Zeldovich NO formation by equilibrium O-atom attack on N2.
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Reports on the topic "NNH"

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Nishiyama, Jitsuya. Confronting Noh Demons: Zeami's Demon Pacifying Noh and Nobumitsu's Demon Killing Noh. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.7011.

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Healton, Edward B. NRH Neuroscience Research Center. Fort Belvoir, VA: Defense Technical Information Center, June 2005. http://dx.doi.org/10.21236/ada444309.

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Healton, Edward B. NRH Neuroscience Research Center. Fort Belvoir, VA: Defense Technical Information Center, June 2004. http://dx.doi.org/10.21236/ada435145.

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Dromerick, Alexander W., and Edward Healton. NRH Neuroscience Research Center. Fort Belvoir, VA: Defense Technical Information Center, June 2006. http://dx.doi.org/10.21236/ada462483.

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Quinn, P., U. Elzur, and C. Pignataro, eds. Network Service Header (NSH). RFC Editor, January 2018. http://dx.doi.org/10.17487/rfc8300.

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Bench, G. NIH Research progress progress report. Office of Scientific and Technical Information (OSTI), March 2014. http://dx.doi.org/10.2172/1129143.

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Cruchinho, Paulo, Gisela Teixeira, Pedro Lucas, and Filomena Gaspar. Influencing Factors of Nurses’ Practice during the Bedside Handover: A Qualitative Evidence Synthesis Protocol. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, November 2022. http://dx.doi.org/10.37766/inplasy2022.11.0013.

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Review question / Objective: Nurses could have inconsistent practice during the Nursing Bedside Handover (NBH) implementation (Clari et al., 2021; Malfait et al., 2019; Whitty et al., 2017). During almost two decades, this inconsistency in nurses' practices has been explained by the strategy of implementation followed at the wards and the resistance behaviors of nurses (Burston et al., 2015; Evans et al., 2012; Kassean & Jagoo, 2005; Malfait et al., 2020; Sand-Jecklin & Sherman, 2013, 2014). Recently, this explanation has come to consider the possibility of nurses' practices be a practice individualized, flexible, and adaptive (McCloskey et al., 2019; Schirm et al., 2018; Tobiano et al., 2018). Based on these supplementary explanations, we formulated the following review question: - What are the factors perceived by nurses that influence inconsistency of practice during NBH? The purpose of this synthesis of the qualitative evidence is to review and synthesize nurses’ perceptions and experiences about the factors that, in their perspective, influence the practice of NBH.
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Liepman, James M. C(nth) I(nth) xyz, TACS, and Air Battle Management: The Search for Operational Doctrine. Fort Belvoir, VA: Defense Technical Information Center, June 1997. http://dx.doi.org/10.21236/ada328102.

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NMR Publicering. NNR 2012: Responses from hearing process. Nordisk Ministerråd, May 2014. http://dx.doi.org/10.6027/na2014-913.

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Packalen, Mikko, and Jay Bhattacharya. Does the NIH Fund Edge Science? Cambridge, MA: National Bureau of Economic Research, July 2018. http://dx.doi.org/10.3386/w24860.

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