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Готові списки джерел за темами / NNF

Добірка наукової літератури з теми "NNF"

Автор: Grafiati

Опубліковано: 22 червня 2024

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Статті в журналах з теми "NNF":

1

Saili, Arvind. "NNF President's Address." Journal of Neonatology 21, no. 4 (December 2007): 217–18. http://dx.doi.org/10.1177/097321790702100402.

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2

Chellani, Harish. "NNF Secretary's Report." Journal of Neonatology 21, no. 4 (December 2007): 219–20. http://dx.doi.org/10.1177/097321790702100403.

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3

Ruotsala, Helena. "Antologi om samisk mytologi." Budkavlen 80 (June 13, 2023): 102–4. http://dx.doi.org/10.37447/bk.130791.

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4

Rosenström, Marika. "Barn och berättelser." Budkavlen 81 (June 13, 2023): 114–15. http://dx.doi.org/10.37447/bk.130730.

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Recension av: Barndomens kulturalisering. Barnkulturforskning i Norden 1. Red. Ulf Palmenfelt. Åbo 1999. (NNF publications 2.) 164s., ill.och Aspekter på narrativitet. Barnkulturforskning i Norden 2. Red. Ulf Palmenfelt. Åbo 2000. (NNF publications 5.) 159 s., ill.

5

Kler, Neelam. "NNF - Secretary's Annual Report." Journal of Neonatology 16, no. 4 (December 2002): 65–67. http://dx.doi.org/10.1177/0973217920020410.

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6

Mathur, N. B. "NNF - Industry Relationship Guidelines." Journal of Neonatology 18, no. 3 (September 2004): 73–75. http://dx.doi.org/10.1177/0973217920040314.

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7

Clerk, L. H., M. E. Smith, S. Rattigan, and M. G. Clark. "Nonnutritive flow impairs uptake of fatty acid by white muscles of the perfused rat hindlimb." American Journal of Physiology-Endocrinology and Metabolism 284, no. 3 (March 1, 2003): E611—E617. http://dx.doi.org/10.1152/ajpendo.00153.2002.

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Triglyceride hydrolysis by the perfused rat hindlimb is enhanced with serotonin-induced nonnutritive flow (NNF) and may be due to the presence of nonnutritive route-associated connective tissue fat cells. Here, we assess whether NNF influences muscle uptake of 0.55 mM palmitate in the perfused hindlimb. Comparisons were made with insulin-mediated glucose uptake. NNF induced during 60 nM insulin infusion inhibited hindlimb oxygen uptake from 22.0 ± 0.5 to 9.7 ± 0.8 μmol · g−1 · h−1( P < 0.001), 1-methylxanthine metabolism (indicator of nutritive flow) from 5.8 ± 0.4 to 3.8 ± 0.4 nmol · min−1 · g−1( P = 0.004), glucose uptake from 29.2 ± 1.7 to 23.1 ± 1.8 μmol · g−1 · h−1( P = 0.005) and muscle 2-deoxyglucose uptake from 82.1 ± 4.6 to 41.6 ± 6.7 μmol · g−1 · h−1( P < 0.001). Palmitate uptake, unaffected by insulin alone, was inhibited by NNF in extensor digitorum longus, white gastrocnemius, and tibialis anterior muscles; average inhibition was from 13.9 ± 1.2 to 6.9 ± 1.4 μmol · g−1 · h−1( P = 0.02). Thus NNF impairs both fatty acid and glucose uptake by muscle by restricting flow to myocytes but, as shown previously, favors triglyceride hydrolysis and uptake into nearby connective tissue fat cells. The findings have implications for lipid partitioning in limb muscles between myocytes and attendant adipocytes.

8

Hernandez-Aguirre, Angel I., Carmen Téllez-Pérez, Alejandra San Martín-Azócar, and Anaberta Cardador-Martínez. "Effect of Instant Controlled Pressure-Drop (DIC), Cooking and Germination on Non-Nutritional Factors of Common Vetch (Vicia sativa spp.)." Molecules 25, no. 1 (December 30, 2019): 151. http://dx.doi.org/10.3390/molecules25010151.

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Legumes are widely consumed by humans, being an important source of nutrients; however, they contain non-nutritional factors (NNFs), such as phytic acid (IP6), raffinose, stachyose, total phenolic compounds, condensed tannins, and flavonoids, that have negative effects on human health. Although vetches (Vicia sativa) are widely cultivated, they are not intended for human feeding due to their contents of NNF. Usually, the NNF are removed by cooking or germinating; however, germination is a process that requires extended time, and cooking may compromise the viability of some nutrients. To promote vetches for human consumption, the effect of the Instant Controlled Pressure Drop (DIC) process was studied as an alternative to cooking and germinating to decrease NNF contents. Results showed that compared to raw vetches, DIC treatment reduced total phenolic compounds (48%), condensed tannins (28%), flavonoids (65%), IP6 (92%), raffinose (77%), and stachyose (92%). These results are very similar to the ones achieved by traditional ways of removing NNF.

9

Park, Silvia, Won Seog Kim, Seok Jin Kim, and Jung Yong Hong. "Neutropenic and Non-Neutropenic Fever In Diffuse Large B-Cell Lymphoma Patients Treated With Rituximab-CHOP Chemotherapy." Blood 122, no. 21 (November 15, 2013): 5103. http://dx.doi.org/10.1182/blood.v122.21.5103.5103.

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Abstract Introduction Rituximab-CHOP (R-CHOP) is the standard chemotherapy in DLBCL patients. Febrile neutropenia (FN) is the major toxicity of this regimen, but we also observe non-neutropenic fever (NNF) during the recovery period after R-CHOP. Method Between September 20089 and January 2013, a total of 1142 lymphoma patients were registered in the prospective cohort. Among these, 397 DLBCL patients who had completed R-CHOP based chemo cycles as first line treatment were analyzed. Results Of the 397 patients, 160 (40.3%) and 39 (9.8%) experienced FN and NNF, and 24 (6.0%) exhibited both. Approximately 50% of the initial FN occurred after the 1st cycle whereas NNF was mainly observed around the 4th cycle (28.2%). Including multiple FN occurrences in 65 patients (40.9%), there were 276 FN events in 160 patients. Besides unexplained fever (47.8%), catheter related infection was predominated (14.2%) and Coagulase negative staphylococcus was the most common microorganism causing bacteremia (27.7%). Thirty nine patients with NNF exhibited a total of 42 episodes and atypical pneumonia comprised the highest proportion (54.8%). Of the identified organisms causing atypical pneumonia, PJP was most common (n=4), adenovirus (n=3), RSV (n=2), and CMV (n=1) came next. Conclusion FN and NNF during R-CHOP treatment showed different clinical manifestation regarding their timing of initial episode and causes. Disclosures: No relevant conflicts of interest to declare.

10

Prentice, I. Colin. "Modelling the demand for new nitrogen fixation by terrestrial ecosystems." Biogeosciences 14, no. 7 (April 12, 2017): 2003–17. http://dx.doi.org/10.5194/bg-14-2003-2017.

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Abstract. Continual input of reactive nitrogen (N) is required to support the natural turnover of N in terrestrial ecosystems. This N demand can be satisfied in various ways, including biological N fixation (BNF) (the dominant pathway under natural conditions), lightning-induced abiotic N fixation, N uptake from sedimentary substrates, and N deposition from natural and anthropogenic sources. We estimated the global new N fixation demand (NNF), i.e. the total new N input required to sustain net primary production (NPP) in non-agricultural terrestrial ecosystems regardless of its origin, using a N-enabled global dynamic vegetation model (DyN-LPJ). DyN-LPJ does not explicitly simulate BNF; rather, it estimates total NNF using a mass balance criterion and assumes that this demand is met from one source or another. The model was run in steady state and then in transient mode driven by recent changes in CO2 concentration and climate. A range of values for key stoichiometric parameters was considered, based on recently published analyses. Modelled NPP and C : N ratios of litter and soil organic matter were consistent with independent estimates. Modelled geographic patterns of ecosystem NNF were similar to other analyses, but actual estimated values exceeded recent estimates of global BNF. The results were sensitive to a few key parameters: the fraction of litter carbon respired to CO2 during decomposition and plant-type-specific C : N ratios of litter and soil. The modelled annual NNF increased by about 15 % during the course of the transient run, mainly due to increasing CO2 concentration. The model did not overestimate recent terrestrial carbon uptake, suggesting that the increase in NNF demand has so far been met. Rising CO2 is further increasing the NNF demand, while the future capacity of N sources to support this is unknown.

Більше джерел

Дисертації з теми "NNF":

1

Ouladj, Maamar. "Optimisations des attaques par canaux cachés." Electronic Thesis or Diss., Paris 8, 2020. http://www.theses.fr/2020PA080019.

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L’ère numérique d’aujourd’hui relie tous les objets entre eux grâce à l’Internet des objets (IoT). Cela conduit à une omniprésence des systèmes embarqués, qui sont dotés de protocoles cryptographiques. Néanmoins, les implémentations de ces protocoles, entraînent des fuites d’informations sensibles pendant leur exécution. Les attaques par canaux auxiliaires (SCA) est un domaine dont l’objectif est l’analyse de ces fuites d’informations, afin de récupérer les paramètres secrets des protocoles.En fonction des habilités de l’adversaire, l’attaque optimale est soit l’analyse par corrélation de la consommation (CPA), Analyse par information mutuelle (MIA), Analyse par Régression Linéaire (LRA) ou les attaques Template (TA). Une première contribution de cette thèse est l’introduction d’une nouvelle stratégie pour améliorer le taux de succès de la CPA à messages choisis.Au lieu de mener une SCA directement sur les traces brutes, on peut la mener en utilisant les traces regroupées par la valeur du message et moyennées. En utilisant cette approche dite par coalescence, on peut réduire considérablement la complexité des SCA. Cela est asymptotiquement sans perte d’efficacité.En utilisant la Transformée de Walsh-Hadamard, on peut accélérer la CPA d’une complexité quadratique à une complexité quasi-linéaire, sous certaines conditions. Dans cette thèse, nous généralisons d’abord l’utilisation de cette approche spectrale dans la CPA. Par la suite, en utilisant à la fois le principe de coalescence, l’approche spectrale et d’autres optimisations, nous fournissons plusieurs améliorations de la complexité d’implémentation des attaques CPA, LRA et TA
Today’s digital era connects everything in between through the Internet of Things (IoT). That leads to an omnipresence of embedded systems endowed with cryptographic protocols. Nevertheless, cryptographic protocol implementations leak sensitive information during their execution. The field of Side-channel attacks (SCA) aims to analyze this leaked information, in order to recover the secret parameters of the protocols.As stated in the SCA literature, according to the adversary abilities (knowing or not the leakage model of the device, having or not a copy of this target device . . . ) the optimal attack is either the Correlation Power Analysis (CPA), Mutual Information Analysis (MIA), Linear regression Analysis (LRA) or the Template attacks (TA). A first contribution of this thesis is the introduction of a new chosen message strategy to improve the CPA success rate.Instead of carrying out an SCA straightforwardly on the rough traces, one can carry it out using the averaged leakage per message value. Using this coalescence one can reduce significantly the SCAs’ complexities, while these attacks with and without coalescence are asymptotically equivalent (which is proven in the current thesis, for the first time).Using the Walsh-Hadamard Transform (WHT), one can speed up the correlation power analysis (CPA) from a quadratic to a quasi-linear complexity, under certain conditions. In this thesis we first generalize the use of this spectral approach for any situation. Consequently, using both of the coalescence principal, the spectral approach, and others optimizations, we provide several improvements of the implementation complexity in both of CPA, LRA and the Template attacks

2

Bartels, Myriam. "Untersuchung molekularer Mechanismen der NF-kB/NRF- [NF-Kappa-B-NRF-] (NF-kB-reprimierender-Faktor)-Interaktion [(NF-Kappa-B-reprimierender-Faktor)-Interaktion] und ihre Rolle bei der Transkriptionsregulation." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=983762392.

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3

Asensio, Javier. "Pirólisis térmica y catalítica de la nicotina y NNK y NNN, dos nitrosaminas específicas del tabaco." Doctoral thesis, Universidad de Alicante, 2020. http://hdl.handle.net/10045/113921.

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El carácter adictivo del tabaco se debe fundamentalmente a la nicotina, mientras que su toxicidad se debe a una serie de sustancias tales como el monóxido de carbono, 1,3-butadieno, hidrocarburos policíclicos aromáticos (PAH) y las nitrosaminas específicas del tabaco (TSNAs), entre otros. La reducción de la toxicidad del humo del tabaco a través de la reducción de la emisión de los productos más problemáticos o la modificación de su composición en conjunto resultan alternativas muy interesantes, mientras se consigue la eliminación de este hábito. Se han localizado trabajos en la literatura encaminados a este fin. Con este objetivo, nuestro grupo de investigación lleva más de quince años estudiando el efecto que ciertos materiales micro y mesoporosos mezclados con el tabaco producen sobre la composición del humo obtenido en el proceso de fumado. En este sentido, en los últimos años se ha puesto de manifiesto la eficacia que presentan algunos silicatos mesoporosos, tales como SBA-15 y MCM-41 en la reducción de los alquitranes y la mayoría de los compuestos presentes en el humo del tabaco. Es por ello que se ha considerado que conocer el comportamiento de determinados compuestos específicos presentes en el humo de tabaco, como son la nicotina y dos nitrosaminas específicas del tabaco (NNK y NNN), los productos que se generan en su pirólisis y combustión, así como el efecto de los materiales mesoporosos mencionados en los procesos que tienen lugar durante el fumado del tabaco, sería de gran interés, y permitiría ayudar a diseñar productos de toxicidad reducida y menor carácter adictivo. A este respecto se han localizado muy escasos artículos en la bibliografía. Por todo ello, en el presente trabajo se aborda esta problemática y se plantea el estudio de la pirólisis de las dos nitrosaminas específicas del tabaco más cancerígenas, como son la 4-(N-metilnitrosoamino)-1-(3-piridinil)-butanona (NNK) y la N-nitrosonornicotina (NNN) mediante dos técnicas, TGA/FTIR y EGA/PY-GC/MS que son capaces de realizar experimentos a las velocidades de calefacción tan dispares que se dan en el proceso de fumado y tanto atmósfera inerte como atmósfera oxidante. También se estudia el comportamiento de la nicotina en EGA/PY-GC/MS, con objeto de completar el ya realizado por nuestro grupo de investigación la técnica de TGA/FTIR. Se estudia el efecto que producen tres silicatos mesoporosos (dos SBA-15 y un MCM-41) que presentan propiedades texturales y morfológicas diferentes, en la pirólisis catalítica de los tres compuestos anteriormente mencionados. Además, se analiza el efecto de la temperatura y la atmósfera (inerte y oxidante), en la degradación de la nicotina y las dos nitrosaminas mencionadas, y en la composición de los gases generados tras su descomposición. Se ha comprobado que en atmósfera oxidante los procesos de descomposición suceden a temperaturas más bajas, siendo especialmente notable este efecto en el caso de la nicotina. Así mismo, la presencia de los tres catalizadores favorece los procesos de descomposición de estos compuestos en ambas atmósferas, modifican la distribución de productos y favorecen la formación de residuo carbonoso. Los principales productos de descomposición de la nicotina en atmósfera inerte son la 3-etil-piridina, la miosmina y, especialmente la 3-vinilpiridina, que aumentan su contribución al aumentar la temperatura. Algunos compuestos como la miosmina presentan un máximo en su evolución, lo que indica que experimentan procesos de craqueo. En atmósfera oxidante se produce un cambio muy significativo en la distribución de productos, además de la mayor reactividad ya mencionada. Los productos mayoritarios pasan a ser la 3-cianopiridina, la nicotirina, la miosmina, el dióxido de carbono y el agua. La 3-cianopiridina y la 3-hidroxipiridina, muestran una tendencia creciente con la temperatura, mientras que el resto de los compuestos presentan evidencias de reacciones secundarias, poniendo de manifiesto que la presencia de oxígeno en el medio favorece las reacciones de descomposición de la nicotina y de muchos de los productos generados. La nicotina genera cianuro de hidrógeno en ambas atmósferas. Los tres catalizadores estudiados aceleran el proceso de descomposición de la nicotina y conducen a una mayor formación de residuo carbonoso, siendo el MCM-41 el material que ocasiona un mayor efecto, probablemente debido a su mayor superficie específica y buena accesibilidad de su porosidad debida a su morfología (aunque presente un menor tamaño de poro que los otros catalizadores). En atmósfera inerte la presencia de SBA-15f (SBA-15 fibras), apenas modifica el comportamiento de la nicotina, mientras que tanto MCM-41 como SBA-15p (SBA-15 platelet) se reduce la formación de algunos compuestos como la 3-vinilpiridina, incrementándose la formación de otros como quinolina e isoquinolina. En atmósfera oxidante los cambios son más significativos, ya que todos los catalizadores favorecen las reacciones de oxidación y descarboxilación, incrementando la generación de dióxido de carbono y disminuyendo la formación de agua, especialmente MCM-41 y SBA15p. MCM-41 reduce notablemente la formación de 3-cianopiridina y de nicotirina al aumentar la temperatura, a diferencia de lo observado en la nicotina, tanto sola como en presencia de los dos SBA-15. Ambas nitrosaminas han presentado unos resultados en la línea de los comentados para la nicotina. Se ha observado que la degradación completa de ambos compuestos sucede a temperaturas ligeramente inferiores para atmósfera oxidante, y presenta variaciones en la composición de los gases generados. Se ha podido comprobar cómo, de los tres materiales estudiados, el MCM-41 es el que provoca mayor modificación de la degradación térmica de ambas nitrosaminas, favoreciendo la generación de residuo en atmósfera inerte. En cuanto a la composición de los productos generados tras la pirólisis de NNK, ambos SBA-15 han mostrado una modificación clara de la distribución de los mismos. También se ha podido observar como en el caso de la NNN, algunos de sus productos de descomposición reducen su contribución a máxima temperatura, observándose tendencias decrecientes y algún máximo en función de la temperatura. Por otro lado, los resultados de termogravimetría para ambas nitrosaminas se han ajustado a un sencillo modelo cinético que permite estimar las áreas de cada uno de los procesos de pérdida de peso observados, pudiéndose realizar de esta forma un análisis más claro del efecto de los catalizadores utilizados basado en las distintas fracciones asociadas a cada uno de los procesos. El caso de la NNK presenta tres procesos de pérdida de peso a 194, 299 y 368 ºC en atmósfera inerte y tres procesos a 208, 299 y 648 ºC en atmósfera oxidante, siendo el principal el que tiene lugar a 299 ºC con un 81.8 y 66.4 % de contribución relativa para atmósfera inerte y oxidante, respectivamente. La NNN ha mostrado dos procesos de pérdida de peso, a 190 y 218 ºC en atmósfera inerte y a 180 y 207 ºC en oxidante. Los tres materiales mesoporosos estudiados han mostrado, para ambas nitrosaminas, modificaciones en la temperatura e intensidad de los procesos observados. Este efecto se hace más notable en aire donde se observa un nuevo proceso térmico a altas temperaturas, siendo especialmente notable este efecto con MCM-41. El experimento con este material para la NNK ha presentado cuatro procesos de pérdida de peso a 197, 232, 281, 414 ºC para atmósfera inerte y oxidante, variando la contribución relativa entre ellos. En el caso de la NNN, el experimento con MCM-41 ha mostrado tres procesos a 190, 218 y 260 ºC para atmósfera inerte y a 180, 207 y a 610 ºC en atmósfera oxidante. Para ambas nitrosaminas en atmósfera oxidante, los gases analizados para los tres materiales han mostrado un aumento considerable (principalmente por el MCM-41) de las bandas de CO2 y CO a temperaturas elevadas, respecto al experimento sin catalizador. Este aumento se ha debido a la degradación oxidativa del residuo carbonoso generado.

4

Khadrah, S. "NNS/NNS interaction during task-based synchronous computer-mediated communication." Thesis, University of Manchester, 2007. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508026.

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5

Landh, Evelina. "Musik + NPF = Sant : Musiklärares arbete med elever med neuropsykiatriska funktionsnedsättningar (NPF)." Thesis, Kungl. Musikhögskolan, Institutionen för musik, pedagogik och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kmh:diva-3886.

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Studien syftar till att bidra med ökad förståelse om musiklärares arbete med elever med NPF (neuropsykiatrisk funktionsnedsättning) i den ordinarie undervisningen. Jag har sökt finna både musiklärares arbetssätt och uppfattningar kring elever med NPF. Studien utgår från ett relationellt perspektiv. Jag har genomfört fyra kvalitativa intervjuer med musiklärare som arbetar på grundskolan samt en som jobbar på ett särgymnasium. Resultatet visade på en mängd arbetssätt och uppfattningar så som vikten av: anpassningar i miljön, struktur, samarbete med andra lärare, följa elevernas intresse och fysiska hjälpmedel. Resultatet visade också på vikten av att göra anpassningar som kommer alla till gagn. I slutsatsen tar jag bland annat upp att genom ordnad miljö, struktur, fysiska hjälpmedel, samverkan, flexibilitet, och adekvata lokaler och gruppstorlekar går det att möta elever med NPF på ett framgångsrikt sätt i musik i den ordinarie undervisningen.
This thesis aims to contribute to an increased understanding of music teachers' work with students with special needs, such as ADHD and autism, (called NPF) in the ordinary school in Sweden. I have tried to find both music teachers' working methods and their perceptions about students with NPF. The study is based on a relational perspective. I have done four qualitative interviews with music teachers who work in the primary school and one teacher that works in a special high school. The results showed a variety of working methods and perceptions, such as the importance of: adjustments and changes in the environment, structure, collaboration with other teachers, following students' interests and physical tools. The results also showed the importance of making adjustments that benefit every student. In the conclusion I mention that through an orderly environment, structure, physical tools, collaboration, flexibility, and adequate premises and group sizes, it is possible to meet all students needs successfully in music in the regular school.

6

Iwashita, Noriko. "Comprehensible output in NNS-NNS interaction in Japanese as a foreign language." Connect to thesis, 1993. http://repository.unimelb.edu.au/10187/1523.

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This study is a partial replication of Pica et al’s study (1989) of comprehensible output, and investigates comprehensible output in NNS-NNS interaction in Japanese as a Foreign Language. Data were collected using two different types of tasks (information gap and jigsaw tasks) in three sub-groups of different proficiency levels (High-High, Low-Low, and High-Low) in order to find out (1) to what extent the tasks provide opportunities for learners to modify their initial output in response to requests for clarification and confirmation, and (2) the extent to which learners actually modify their output in response to interlocutor requests.
The results show that comprehensible output is an important phenomenon in NNS-NNS interaction. Unlike the result of Pica et al, task types had more effect on opportunities for comprehensible output and actual production of comprehensible output than request types. Not much difference was found among different proficiency groups.

7

Harfouche, Joyce. "Nouvelles méthodologies de synthèse de ligands NN, NNO, et nos chiraux : utilisation en catalyse asymétrique homogène pour la réduction de cétones." Lyon 1, 2005. http://www.theses.fr/2005LYO10147.

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L'objectif de la thèse a consisté à mettre au point une méthodologie de synthèse simple et efficace de ligands diamines, de diaminoalcools, d'aminothiols et d'aminothiophénols chiraux. Les diamines et diaminoalcools ont été synthétisés par des méthodes de couplage peptidique. Nous avons ensuite optimisé l'ouverture régiosélective et stéréospécifique du S-thiiranyltrityléther par la benzylamine que nous avons étendue à d'autres amines afin d'obtenir une famille d'aminothiols chiraux. Dans un deuxième temps, nous avons synthétisé des aminothiophénols à partir de l'acide thiosalycilique à l'aide de deux voies de synthèse différentes. Ces ligands ont été testés pour la réduction de cétones aromatiques par hydrogénation ou par transfert d'hydrure. Une étude spécifique effectuée avec le benzoylformate de méthyle a été réalisée, mettant à jour la transformation de ce substrat en mandélate d'isopropyle grâce au tert-butylate de potassium

8

Faiglová, Veronika. "Posouzení faktorů úspěšnosti NNO." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-10632.

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The aim of this work is the processing and evaluation of information gained from the questionnaire survey, which took place within the University research. The work is focused on factors that influence the success of NGOs in particular in the areas of activities of organizations and their financing. NGOs are first grouped according to age, geographical scope and legal status. It is also being considered with a vision and mission of their short-term and long-term goals. Another chapter examines the importance of volunteers and their application in different areas of operation. Here is an analysis of the internal control situation, the quality of services and use of information systems. The last task is focused on the allocation of financial resources and evaluation of NGO work with the financial plans.

9

Brigle, Kevin Eugene. "Studies on the structure and function of various nif and nif- associated gene products encoded within the Azotobacter vinelandii nif gene cluster." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54498.

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The present study investigates the structural and functional roles of the metalloclusters present within the MoFe protein of nitrogenase from Azotobacter vinelandii. A gene replacement strategy was developed for oligonucleotide-directed mutagenesis of these proteins and the resulting biological and biochemical effects of these changes were examined. Identification of structurally important regions in the MoFe protein subunits and assignment of specific amino acid residues as potential metal cluster ligands were based upon several criteria: i. metallocluster extrusion requirements; spectroscopic properties of the MoFe protein; interspecies and intersubunit comparisons; iv. comparison of the MoFe protein subunit sequences to iron-molybdenum cofactor biosynthetic gene products. This mutagenesis strategy has permitted the construction of thirty-three mutant strains having specific amino acid substitutions within the MoFe protein subunits. Based on the diazotrophic growth characteristics and substrate reduction capabilities of these mutant strains, a model is presented in which potential metallocluster binding sites within the MoFe protein subunits are defined. In addition to analysis of the MoFe protein subunits, this site-directed mutagenesis and gene replacement strategy can be used to place specific mutations into any gene product encoded within the A. vinelandii nif gene cluster. Finally, nucleotide sequence analysis of the regions flanking the nifEN genes revealed the presence of three nif genes (nifT, nifY, and nifX) and four open reading frames (ORF1, ORF2, ORF3, and ORF4). Two of these genes, nifX and ORF3, were shown to be under nif control and synthesis of their products elevated in response to a demand for fixed nitrogen. Mutant strains with deletions in ORF3 appeared to accumulate an excess amount of MoFe protein when compared to wild type. The ORF3 gene product has been overproduced in E. coli. This provides an important step toward characterizing the protein and elucidating the molecular basis for its control of nifDK gene expression.
Ph. D.

10

Simsa, Ruth. "Repression of the Spanish Protest Movement - Mechanisms and Consequences." De Gruyter, 2017. http://dx.doi.org/10.1515/npf-2017-0022.

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Based on longitudinal qualitative research, the paper analyses manifestations and mechanisms of the repression of activists of the Spanish protest movement 15M, and effects of this repression perceived by activists. To contextualize this, the background of the movement, its goals, and its achievements are described. The movement started in 2011, protesting the social crisis, the consequences of austerity policies, and corruption. It had viable effects on the framing of the current situation, in political attitudes and also, indirectly, on the political system. The Spanish government has responded to movement activities with repression and with new laws that interviewees characterize as a further restriction of the civil right to demonstrate and protest. Findings indicate that the combination of overt and covert repression have effects far beyond the manifest acts of the repression itself.

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Книги з теми "NNF":

1

(India), National Neonatology Forum, and Indian Academy of Pediatrics, eds. IAP-NNF guidelines 2006 on level II neonatatal care. Mumbai: Indian Academy of Padiatrics, 2007.

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2

Césaire, Michèle. La nef. Paris: Editions theatrales, 1992.

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3

Agassi, Nelly. Nof Shaʼul. [Tel Aviv]: Muzeʼon Tel Aviv le-omanut, 2004.

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4

Avishay, Ayal, та Universiṭat Ḥefah Galeryah le-omanut, ред. Tavnit nof: Heʻarah ʻal tsilum ha-nof ha-meḳomi. Ḥefah: ha-Galeryah le-omanut, Universiṭat Ḥefah, 2004.

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5

Ofomata, Chinedum E. Lee nna m. Enugu: Format Publishers, 2009.

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6

Dekalo-Dor, Mali. Nof ʻim menorot. [Tel Aviv]: Galeryah Bograshov, 1991.

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7

D, Maphalla K. P. Nna ke mang? Pietermaritzburg: Reach Out Publishers, 1992.

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8

Amichai, Yehuda. Nof galui ʻenayim. Yerushalayim: Shoḳen, 1992.

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9

Flint, Wendy. NSF development framework. Leicester: National Youth Agency, 2003.

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10

Ofomata, Chinedum E. Maka nne m. Enugu: Format Publishers, 2009.

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Частини книг з теми "NNF":

1

Altamirano, Edgar, and Gonçal Escalada-Imaz. "Finding Tractable Formulas in NNF." In Computational Logic — CL 2000, 493–507. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-44957-4_33.

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2

Chuan, Li, Tang Changjie, Peng Jing, Hu Jianjun, Jiang Yongguang, and Yong Xiaojia. "NNF: An Effective Approach in Medicine Paring Analysis of Traditional Chinese Medicine Prescriptions." In Database Systems for Advanced Applications, 576–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11408079_52.

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3

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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4

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.

5

Hirose, Munetaka. "NGF." In Encyclopedia of Signaling Molecules, 3475–79. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67199-4_101731.

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6

Posypaiko, V. I., and E. A. Alekseeva. "NaF." In Phase Equilibria in Binary Halides, 329–45. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4684-9024-4_118.

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7

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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8

Andrews, Anne M., Greg A. Gerhardt, Lynette C. Daws, Mohammed Shoaib, Barbara J. Mason, Charles J. Heyser, Luis De Lecea, et al. "NNT." In Encyclopedia of Psychopharmacology, 901. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-68706-1_4421.

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9

Bährle-Rapp, Marina. "NMF." In Springer Lexikon Kosmetik und Körperpflege, 378. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_6979.

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10

Hirose, Munetaka. "NGF." In Encyclopedia of Signaling Molecules, 1–5. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4614-6438-9_101731-1.

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Тези доповідей конференцій з теми "NNF":

1

Koki, Saito, and Watanabe Tomohiro. "Thermal Fatigue Cracking due to Intermittently Flowing Drain Water in Steam Piping." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21396.

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Abstract In a petrochemical plant, a steam leak incident happened due to a through-wall crack, which was found around the branch connection between the superheated steam pipe header and the branch pipe for the safety valve. Similar cracks had been observed in the Normally No Flow (NNF) line pipes sometimes. We decided to investigate the cause of these cracks. The crack was found along the circumferential welding line of the branch connection. According to the microfractography, the origin of the crack was internal surface of the pipe and it propagated through the thickness of the wall. Striations were observed on the fracture surface, and it showed the fatigue effect. All the NNF line pipes where the leak incidents occurred were installed upward and then connected to the horizontal pipe toward the safety valve. Infrared thermographic testing revealed that the steam drain pooled in the horizontal pipes was flowing intermittently toward the superheated steam pipe header. Cyclic thermal stress was sure to occur in the damaged area with calculation by FEM, and the cause was assumed to be thermal fatigue cracking due to intermittent dripping of drain water condensed in the NNF pipe. We decided to correct the slope of the horizontal pipe so that the drain was not pooled. Also, we checked all other NNF line pipes upwards and confirmed that there was no possibility of a similar incident due to drain in the horizontal pipe.

2

Boumediene, M., A. Ouamri, and N. Dahnoun. "Lane Boundary Detection and Tracking using NNF and HMM Approaches." In 2007 IEEE Intelligent Vehicles Symposium. IEEE, 2007. http://dx.doi.org/10.1109/ivs.2007.4290265.

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3

Lan, Yuhai, Xingchun Xiang, Huaixuan Zhang, and Shuhan Qi. "A Highly Efficient and Robust Method For NNF-Based Template Matching." In 2020 IEEE International Conference on Multimedia & Expo Workshops (ICMEW). IEEE, 2020. http://dx.doi.org/10.1109/icmew46912.2020.9105976.

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4

Kanamaru, Shinichiro, Shaoxiang Qian, and Yoshinori Yamada. "Proposal for Improving Insulation Installation Practice for Superheated Steam Line." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93503.

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Abstract Insulation is widely used in process plants to reduce heat loss of process fluids in piping and pressure vessels. However, insulation is often not installed around Normally No Flow (NNF) line pipe. In a refinery plant, a steam leak incident happened due to a through-wall crack, which was found around the connection between an insulated superheated steam line with insulation and an uninsulated safety valve line. The through-wall crack was identified to be a fatigue crack initiated at the inner surface by fractography. An unsteady Computational Fluid Dynamics (CFD) analysis was performed to identify mechanism of the through-wall crack initiation. Based on the observation of fractography and the CFD analysis, it is inferred that the through-wall crack was induced by a high cycle thermal fatigue phenomenon, so-called thermal striping, due to incomplete mixing of hot and cold fluids. Many thermal striping incidents in nuclear plants and process plants have been reported. In view of the above fact, it is suggested that conventional insulation installation practice for NNF line pipe, in particular superheated steam line, may cause cracks due to thermal striping around the connection between main superheated steam pipe and branch dead-end leg. In this paper, a convenient guideline for insulation installation is proposed for a dead-end leg of superheated steam line to prevent cracks caused by thermal striping. The guideline can be used to judge the necessity of insulation installation, based on degree of superheat of steam.

5

Ellam, Darren J., Raymond J. Atkin, and William A. Bullough. "Appraisal of an ESF Radial Plate Clutch With Cooling Flow Using a NNF CFD Solver." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1940.

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Abstract To aid the application of electro-structured fluid (ESF) devices, a virtual two plate radial clutch is examined in a pre-prototyping exercise to estimate the effect of a radial cooling flow on pre-set torque transmission. A throughflow of ESF will act to keep the fluid temperature under control making such devices more reliable over a wider operating range. The ESF is treated as a Bingham viscoplastic material and clutch behaviour is investigated under steady state isothermal conditions. The resulting two-dimensional non-Newtonian fluid (NNF) model is solved using a computational fluid dynamics (CFD) package. The results are partially verified using analytical analysis and compared with sparse experimental data. This work is expected to lead to a more complex CFD model for which analytical methods will not be available. Indications are that, for realistic rates of throughflow, torque transmission should not be overtly affected. Hence the cooling of slipping ESF clutches by throughflow can be contemplated.

6

Wang, Yi, Sung-Ho Lee, Yen-Yu Ian Shih, and Yuan-Shin Lee. "Design and Fabrication of MRI-Compatible and Flexible Neural Microprobes for Deep Brain Stimulation and Neurological Treatment Applications." In ASME 2022 17th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/msec2022-85832.

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Abstract This paper presents a new design and fabrication method of flexible neural microprobes for deep brain stimulations (DBS) and neurological treatment applications. The developed new flexible microprobes are compatible with functional magnetic resonance imaging (fMRI) and can be used for neurological studies of brain functions under functional imaging such as fMRI for a long period of time. In this paper, the materials of the flexible neural microprobes are comprehensively selected to minimize the magnetic resonance imaging (MRI) artifacts, which limits many conventional feasible manufacturing processes to be used. Polyimide was adopted for the substrate of the neural microprobe, which has good biocompatibility and a relatively lower Young’s modulus. A 200 nm chromium reinforcement layer was embedded in the microprobe to attenuate its implantation stiffness while remaining flexible. Gold electroplating was employed to modify the electrode sites to improve the signal quality and sensitivity. The designed new neural microprobes were successfully fabricated at our NCSU Nanofabrication Facility (NNF) and bonded to a customized PCB. After the fabrication, the developed neural microprobes were characterized to validate their effectiveness. In vivo simultaneous DBS-fMRI experiments were conducted in surgery rooms on a rat’s deep brain targets, demonstrating the potential applications of our neural microprobe for neuroscience studies, medical diagnosis, and treatment applications. In vivo electrophysiology results show the effectiveness of our fabricated neural microprobes.

7

Xue, Yang, and Zhongliang Jing. "On-Line Self-Learning Neural Network Control for Articulated Pneumatic Robot Position System." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80161.

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In this paper, a NNI (Neural Network Identifier) is presented to learn model for an articulated multiple DOF (Degrees of Freedom) pneumatic robot position system. It can adjust the weights and biases of NNC (Neural Network Controller) on line. This controller can effectively solve the difficult problems of single rod cylinders, which are mainly caused by asymmetric structures and different friction characteristics in two directions. On these bases an articulated four DOF pneumatic robot is designed and its work space is analyzed. Experimental results prove that, the dynamic performance of the system can be much improved. The system using NN (Neural Network) has strong self-adaptability and robustness. It obtains desired percentage overshoot and repeatability in steady-state responses.

8

Bettocchi, R., M. Pinelli, P. R. Spina, and M. Venturini. "Artificial Intelligence for the Diagnostics of Gas Turbines: Part I — Neural Network Approach." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68026.

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In the paper, Neural Network (NN) models for gas turbine diagnostics are studied and developed. The analyses carried out are aimed at the selection of the most appropriate NN structure for gas turbine diagnostics, in terms of computational time of the NN training phase, accuracy and robustness with respect to measurement uncertainty. In particular, feed-forward NNs with a single hidden layer trained by using a back-propagation learning algorithm are considered and tested. Moreover, Multi-Input/Multi-Output NN architectures (i.e. NNs calculating all the system outputs) are compared to Multi-Input/Single-Output NNs, each of them calculating a single output of the system. The results obtained show that NNs are robust with respect to measurement uncertainty, if a sufficient number of training patterns are used. Moreover, Multi-Input/Multi-Output NNs trained with data corrupted with measurement errors seem to be the best compromise between the computational time required for NN training phase and the NN accuracy in performing gas turbine diagnostics.

9

Wang, Jun, Kevin Chiu, and Mark Fuge. "Learning to Abstract and Compose Mechanical Device Function and Behavior." In ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/detc2020-22714.

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Abstract While current neural networks (NNs) are becoming good at deriving single types of abstractions for a small set of phenomena, for example, using a single NN to predict a flow velocity field, NNs are not good at composing large systems as compositions of small phenomena and reasoning about their interactions. We want to study how NNs build both the abstraction and composition of phenomena when a single NN model cannot suffice. Rather than a single NN that learns one physical or social phenomenon, we want a group of NNs that learn to abstract, compose, reason, and correct the behaviors of different parts in a system. In this paper, we investigate the joint use of Physics-Informed (Navier-Stokes equations) Deep Neural Networks (i.e., Deconvolutional Neural Networks) as well as Geometric Deep Learning (i.e., Graph Neural Networks) to learn and compose fluid component behavior. Our models successfully predict the fluid flows and their composition behaviors (i.e., velocity fields) with an accuracy of about 99%.

10

Khan, Lareb Zar, Pedro J. Freire, João Pedro, Nelson Costa, Antonio Napoli, and Nicola Sambo. "Data Augmentation to Reduce Computational Complexity of Neural-Network-Based Soft-Failure Cause Identifier." In Optical Fiber Communication Conference. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/ofc.2023.m3g.3.

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We investigated data augmentation to train neural networks (NNs) for soft-failure cause identification, demonstrating its impacts on NN complexity. Results indicate up to 68% reduction in the computational complexity of NN for each inference.

Звіти організацій з теми "NNF":

1

Bruno, Francesco, Domenico Arcuri, Francesca Vozzo, Antonio Malvaso, Alberto Montensanto, and Raffaele Maletta. Expression and signaling pathways of Nerve Growth Factor (NGF) and pro-NGF in breast cancer: a systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, October 2022. http://dx.doi.org/10.37766/inplasy2022.10.0017.

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Review question / Objective: This study aims to systematically review and comprehensively summarize the current experimental evidence about the involvement of Nerve Growth Factor (NGF) and pro-NGF signaling pathways in breast cancer. Therefore, the questions are as follows: (1) What is the expression level of NGF, pro-NGF and their receptors in breast cancer? (2) What is the role played by NGF, pro-NGF and their receptors in the pathophysiological mechanisms (i.e., proliferation, apoptosis, angiogenesis, invasion, metastasis) of breast cancer? (3) What is the diagnostic, prognostic and therapeutic potential of NGF, pro-NGF and their receptors in breast cancer? Condition being studied: Breast cancer is a neoplasm of epithelial origin that generally develops in the parts of the breast tissue made up of the glands involved in milk production or in the ducts that connect the glands to the nipple. In women it represents the most frequent cancer as well as the leading cause of cancer death. The incidence of breast cancer is estimated to increase over the years and to reach 3.2 million in 2050, thus representing a health emergency both from a medical and a psychological point of view. Therefore, prevention and early diagnosis of breast cancer appears to be of primary urgency as well as the development of new treatments able to improve its prognosis.

2

Carpenter, J., and B. Warner. NIF facts. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/15002091.

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3

Parham, T. NIF optics. Office of Scientific and Technical Information (OSTI), August 2000. http://dx.doi.org/10.2172/15002100.

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4

Bridges, Todd, Jeffrey King, Jonathan Simm, Michael Beck, Georganna Collins, Quirjin Lodder, and Ram Mohan. Overview : International Guidelines on Natural and Nature-Based Features for Flood Risk Management. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/41945.

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The application of natural and nature‑based features (NNBF) has grown steadily over the past 20 years, supported by calls for innovation in flood risk management (FRM) and nature‑based solutions from many different perspectives and organizations. Technical advancements in support of NNBF are increasingly the subject of peer‑reviewed and other technical literature. A variety of guidance has been published by numerous organizations to inform program‑level action and technical practice for specific types of nature‑based solutions. This effort to develop international guidelines on the use of NNBF was motivated by the need for a comprehensive guide that draws directly on the growing body of knowledge and experience from around the world to inform the process of conceptualizing, planning, designing, engineering, constructing, and operating NNBF.

5

Zahler, Roberto. Metodología para las negociaciones en el área de servicios financieros (NSF). Inter-American Development Bank, August 2003. http://dx.doi.org/10.18235/0007985.

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Esta presentación fue comisionada por la Red de Integración y Comercio del Diálogo Regional de Política para la 5ta Reunión Hemisférica celebrada los días 14 y 15 de agosto de 2003. Las negociaciones de servicios financieros (NSF) son un tema novedoso. Esta presentación presenta criterios y una metodología que pueden contribuir a mejorar la preparación y la negociación de servicios financieros por parte de países de América Latina. Incluye acuerdos multilaterales; consideraciones estratégicas en la Negociaciones de Servicios Financieros (NSF); negociación de servicios financieros en Tratados de Libre Comercio (TLC); y metodología para un NSF.

6

Piercy, Candice, Safra Altman, Todd Swannack, Carra Carrillo, Emily Russ, and John Winkelman. Expert elicitation workshop for planning wetland and reef natural and nature-based features (NNBF) futures. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41665.

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This special report discusses the outcomes of a September 2019 workshop intended to identify barriers to the consideration and implementation of natural and nature-based features (NNBF) in US Army Corps of Engineers (USACE) civil works projects. A total of 23 participants representing seven USACE districts, the US Army Engineer Research and Development Center (ERDC), and the University of California–Santa Cruz met at USACE’s South Atlantic Division Headquarters in Atlanta, Georgia, to discuss how to facilitate the implementation of NNBF into USACE project planning for wetlands and reefs using six categories: (1) site characterization, (2) engineering and design analysis, (3) life-cycle analysis, (4) economic analysis, (5) construction analysis, (6) and operation and maintenance (and monitoring). The workshop identified seven future directions in wetland and reef NNBF research and development: • Synthesize existing literature and analysis of existing projects to better define failure modes. • Determine trigger points that lead to loss of feature function. • Identify performance factors with respect to coastal storm risk management (CSRM) performance as well as ecological performance. • Focus additional research into cobenefits of NNBF. • Quantify the economic life-cycle costs of a project. • Improve technology transfer with regards to NNBF research and topics.

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Cooper, A. B., B. A. Remington, M. W. Pound, A. S. Moore, S. A. Maclaren, R. J. Williams, D. D. Ryutov, M. E. Foord, J. C. Hayes, and A. Mizuta. Eagle Nebula Experiments on NIF: NIF Facility Time Proposal. Office of Scientific and Technical Information (OSTI), June 2010. http://dx.doi.org/10.2172/1116954.

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Carpenter, J., and B. Warner. NIF and science. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/15002092.

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Carpenter, J., and B. Warner. NIF program management. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/15002095.

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Young, P. E. NIF Spot Summary. Office of Scientific and Technical Information (OSTI), April 2000. http://dx.doi.org/10.2172/793864.

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