Academic literature on the topic 'Granati'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Granati.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Granati"
1
Thomidis, T., and E. Exadaktylou. "First Report of Pilidiella granati on Pomegranate with Symptoms of Crown Rot in the Prefecture of Xanthi, Greece." Plant Disease 95, no. 1 (January 2011): 79. http://dx.doi.org/10.1094/pdis-07-10-0514.
Full textAbstract:
In spring 2010, plants of pomegranate (Punica granatum L.) cv. Wonderful with symptoms of crown rot were observed in the Prefecture of Xanthi, Thrace, Greece. Close examination of these plants revealed distinct symptoms of crown rots. Isolations from the lower margins of the necrotic area were made by plating tissues of approximately 3 mm on acidified (2.5 ml of 85% lactic acid per liter of nutrient medium to create a pH = 3.5 after autoclaving) potato dextrose agar. The plates were incubated at 23°C for 5 to 7 days, and consistent colonies with light yellow, leathery mycelia and abundant, black, solitary pycnidia of various sizes were observed. Hyphae were septate and conidia were hyaline, one-celled, and ellipsoid to fusiform (average 10.1 to 20.2 × 3.2 to 4.3 μm). The pathogen was identified as Pilidiella granati Saccardo (synonym Coniella granati (Saccardo) Petrak & Sydow (3)) based on mycelium and spore morphology and ribosomal ITS1-5.8S-ITS2 sequences, which were identical to GenBank No. FN908875. Koch's postulates were completed in the laboratory by inoculating 20 1-year-old plants of pomegranate cv. Wonderful. With a 7-mm-diameter cork borer, a wound was created in the middle of each collar by removing the bark. A 6-mm-diameter agar plug bearing mycelia and spores from a 15-day-old culture of P. granati was inserted into each wound. The wound was covered with petroleum jelly and wrapped with adhesive tape to prevent desiccation. Ten trees were inoculated with sterile potato dextrose agar plugs to serve as controls. All plants were incubated at 25°C for 10 days, at which time necrosis was observed. Koch's postulates were satisfied after reisolating the fungus from inoculated plants that developed symptoms similar to those observed in the field. Control plants produced no symptoms of disease. To our knowledge, this is the first report of P. granati from pomegranate plants with symptoms of crown rots in Greece. The role of predisposing factors such as herbicides and frost damage to infection by P. granati is unknown. This pathogen has been reported to cause fruit rot of pomegranate in Spain (2) and California (1). References: (1) T. J. Michailides et al. (Abstr.) Phytopathology 100(suppl.):S83, 2010. (2) L. Palou et al. New Dis. Rep. Online publication. doi:10.5197/j.2044-0588.2010.022.021, 2010. (3) G T. Tziros and K. Tzavella-Klonari. Plant Pathol. 57:783, 2007.
2
Mincuzzi, Annamaria, Antonio Ippolito, Virginia Brighenti, Lucia Marchetti, Stefania Benvenuti, Angela Ligorio, Federica Pellati, and Simona Marianna Sanzani. "The Effect of Polyphenols on Pomegranate Fruit Susceptibility to Pilidiella granati Provides Insights into Disease Tolerance Mechanisms." Molecules 25, no. 3 (January 24, 2020): 515. http://dx.doi.org/10.3390/molecules25030515.
Full textAbstract:
Pilidiella granati, also known as Coniella granati, is the etiological agent of pomegranate fruit dry rot. This fungal pathogen is also well-known as responsible for both plant collar rot and leaf spot. Because of its aggressiveness and the worldwide diffusion of pomegranate crops, the selection of cultivars less susceptible to this pathogen might represent an interesting preventive control measure. In the present investigation, the role of polyphenols in the susceptibility to P. granati of the two royalties-free pomegranate cultivars Wonderful and Mollar de Elche was compared. Pomegranate fruit were artificially inoculated and lesion diameters were monitored. Furthermore, pathogen DNA was quantified at 12–72 h post-inoculation within fruit rind by a real time PCR assay setup herein, and host total RNA was used in expression assays of genes involved in host-pathogen interaction. Similarly, protein extracts were employed to assess the specific activity of enzymes implicated in defense mechanisms. Pomegranate phenolic compounds were evaluated by HPLC-ESI-MS and MS2. All these data highlighted ‘Wonderful’ as less susceptible to P. granati than ‘Mollar de Elche’. In the first cultivar, the fungal growth seemed controlled by the activation of the phenylpropanoid pathway, the production of ROS, and the alteration of fungal cell wall. Furthermore, antifungal compounds seemed to accumulate in ‘Wonderful’ fruit following inoculation. These data suggest that pomegranate polyphenols have a protective effect against P. granati infection and their content might represent a relevant parameter in the selection of the most suitable cultivars to reduce the economic losses caused by this pathogen.
3
Kwon, Jin-Hyeuk, and Chang-Seuk Park. "Fruit Rot of Pomegranate (Punica granatum) Caused by Coniella granati in Korea." Research in Plant Disease 8, no. 4 (December 1, 2002): 215–19. http://dx.doi.org/10.5423/rpd.2002.8.4.215.
Full text
4
Uysal, Aysun, Şener Kurt, Emine Mine Soylu, Merve Kara, and Soner Soylu. "Morphology, Pathogenicity and Management of Coniella Fruit Rot (Coniella granati) on Pomegranate." Turkish Journal of Agriculture - Food Science and Technology 6, no. 4 (April 10, 2018): 471. http://dx.doi.org/10.24925/turjaf.v6i4.471-478.1787.
Full textAbstract:
One of the objectives of the study was to identify the fungus involved in fruit rot on pomegranates in the Mediterranean Region of Turkey. The fungus designated as Coniella granati (Saccardo) Petrak and Sydow based on morphological characteristics. The fungus colonized the fruit after 5 to 8 days, followed by the appearance of fruit rot symptoms leading to the formation of abundant pycnidia covering the peel. Secondly, the efficacy of fungicides against C. granati was evaluated by mycelial growth and conidial germination assays. Tebuconazole, boscalid+pyraclostrobin and iprodione at 1.0, 25, and 50 μgml-1 concentrations, respectively, completely inhibited mycelial growth. In the azoxystrobin and dodine, relatively higher concentrations required to inhibit mycelial growth. Tebuconazole exhibited the greatest inhibition (82.2%) of mycelium growth. The EC50 values in mycelial growth of C. granati ranged from 0.13 to 151.9. The highest EC50 values occurred for tebuconazole (0.13μgml-1). Tebuconazole, boscalid+pyraclostrobin and iprodione at 200, 10 and 5 μgml-1 concentrations, respectively, were the highly effective in inhibiting conidial germination. Azoxystrobin exhibited a low effect (61%) on conidial germination. The EC50 values on conidial germination of C. granati ranged from 0.2 to 28.7. Tebuconazole had the lowest EC50 value, while boscalid+pyraclostrobin exhibited the highest EC50 value.
5
Yuan, Hongbo, Hui Hou, Tianxiang Huang, Zengqiang Zhou, Hongtao Tu, and Li Wang. "Agrobacterium tumefaciens-mediated transformation of Coniella granati." Journal of Microbiological Methods 182 (March 2021): 106149. http://dx.doi.org/10.1016/j.mimet.2021.106149.
Full text
6
Tekiner, Nasibe, Recep Kotan, Elif Tozlu, and Fatih Dadaşoğlu. "Biological Control of Coniella granati Saccardo in Pomegranate." Universal Journal of Agricultural Research 8, no. 1 (January 2020): 18–24. http://dx.doi.org/10.13189/ujar.2020.080103.
Full text
7
Al-Sweedi, Taha M. M. "The Accumulated Heat Units Required for the Development of the Different Stages of the Grape False Spider Mite, Tenuipalpus granati Sayed Under Laboratory Conditions." Arab Journal for Plant Protection 40, no. 4 (2022): 351–55. http://dx.doi.org/10.22268/ajpp-40.4.351355.
Full textAbstract:
Al-Sweedi, T.M.M. 2022. The Accumulated Heat Units Required for the Development of the Different Stages of the Grape False Spider Mite, Tenuipalpus granati Sayed Under Laboratory Conditions. Arab Journal of Plant Protection, 40(4): 351-355. https://doi.org/10.22268/AJPP-40.4.351355 The grape false spider mite Tenuipalpus granati Sayed (Acariformes: Tenuipalpidae) is one of the significant pests on the grape trees in Iraq. The aim of this study was to determine the threshold temperature and calculate the heat units needed for the development time of the duration of this mite stage. Different incubation temperatures (10 15, 20, 25, 30, 35, and 40±2°C), relative humidity (50-60±5%), and light:darkness period of 16: 8 hours were applied to rear this mite on the lower surface of the newly grown grape leaves. The results showed that the development time of the egg, larva, protonymph, and deutonymph (active, quiescent, active + quiescent) at temperatures 15, 20, 25, 30, and 35°C were decreased gradually with temperature increase. Furthermore, the development time of the eggs incubation period was 15.3, 4.98 days and the larva (active + quiescent) were 15.1, 4.43 days, and the protonymph (active + quiescent) was 14.4, 3.48 days and of the deutonymph (active + quiescent) was 15.6, 5.58 days for the effect of 15 and 35°C. Additionally, the development time from egg to adult was 60.00 and 18.26 days at 15 and 35°C, respectively. The threshold temperature was 6.73, 7.89, 9.38, 6.47 and 7.3 °C, respectively. Finally, the accumulated heat units required for the development time of each mite instar varied according to the threshold temperature difference and development time. Keywords: False red mite, heat units, Tenuipalpus granai, developmental rate.
8
Mirabolfathy, M., J. Z. Groenewald, and P. W. Crous. "First Report of Pilidiella granati Causing Dieback and Fruit Rot of Pomegranate (Punica granatum) in Iran." Plant Disease 96, no. 3 (March 2012): 461. http://dx.doi.org/10.1094/pdis-10-11-0887.
Full textAbstract:
Iran is the largest producer of pomegranate (Punica granatum) in the world, with more than 60,000 ha currently in production. In the spring of 2011, a decline and dieback of young pomegranate trees (7 to 10 years old) were observed in the Kheir area of Fars Province. Dieback and twig blight developed toward the lower part of the stem, resulting in death of aerial tree parts and growing suckers from roots. Surface-disinfected tissues of diseased plants were plated on potato dextrose agar (PDA) and malt extract agar media. Isolates were separated into two groups that had either pale green or white aerial mycelia and sporulated after 5 to 7 days at 25°C. Pycnidia were globose and black with thin, membranous, pseudoparenchymatic walls, 80 to 140 μm in diameter. Conidia were hyaline, one-celled, elongate to fusiform, straight, and 11 to 17 × 4 to 6 μm (average 14 × 4.7 μm). Cardinal minimum growth temperatures were 8 to 10°C, optimum at 27 to 30°C, and maximum at 35°C. Radial growth rate at 30°C was 8 to 9 mm per day. Representative isolates were deposited in the CBS-KNAW Fungal Biodiversity Centre, the Netherlands (CPC 19625 = CBS 130974 and CPC 19626 = CBS 130975; GenBank JN815312 and JN815313, respectively). Genomic DNA was extracted with the UltraClean Microbial DNA Isolation Kit (MoBio Laboratories, Inc., Solana Beach, CA) and the internal transcribed spacer (ITS) region of the nrDNA operon of two isolates were sequenced as described previously (1). On the basis of morphology (3), the causal organism was identified as Pilidiella granati Sacc. This identification was corroborated by the ITS sequence data, which was identical for both colony types to GenBank HQ166057 (identities = 614 of 614 [100%]). Pathogenicity tests were conducted using two representative isolates from each group on 5-month-old P. granatum trees with 10 replicates under greenhouse conditions; 5-mm mycelial plugs from the edge of 7-day-old colonies on PDA were placed under the bark of twig wounds. Uncolonized PDA plugs were used as noninoculated controls. Pathogenicity was also tested on nonwounded fruit by placing colonized 5-mm-diameter mycelial plugs on surface-disinfected pomegranate fruits; noncolonized PDA plugs were used as controls. All treated fruit were placed in plastic bags and maintained at 25°C for 10 days. Isolates were found to be pathogenic on twigs after 2 months, giving rise to brown lesions that were 2 to 5 cm long. No lesions were observed on the controls. Furthermore, the fungus was reisolated from all infected tissues, satisfying Koch's postulates. On pomegranate fruit, the fungus colonized the fruit after 5 to 8 days, followed by the appearance of fruit rot symptoms leading to the formation of abundant pycnidia covering the skin after 10 days. No decay was observed in control inoculations. Pilidiella granati has previously been reported as a pathogen of P. granatum fruit from Europe, Asia, and the United States (2). To our knowledge, this is the first report of this pathogen causing dieback and fruit rot of pomegranate in Iran. References: (1) J. Frank et al. Persoonia 24:93, 2010. (2) L. Palou et al. Online publication. doi:10.5197/j.2044.0588.2010.022.021. New Dis. Rep. 22:21, 2010. (3) J. M. Van Niekerk et al. Mycol. Res. 108:283, 2004.
9
Park, Soo-Yeon, Chang-Su Na, Won-Cheol Jeong, and Jong-Cheol Lee. "A Literature Study of Pericarpium Granati and Cortex Betulae Platyphyllae." Journal of Korean Oriental Medical Ophthalmology and Otolaryngology and Dermatology 25, no. 3 (August 25, 2012): 13–33. http://dx.doi.org/10.6114/jkood.2012.25.3.013.
Full text
10
Çeliker, Naciye Mükerrem, Ayşe Uysal, Barbaros Çetinel, and Dilek Poyraz. "Crown rot on pomegranate caused by Coniella granati in Turkey." Australasian Plant Disease Notes 7, no. 1 (October 16, 2012): 161–62. http://dx.doi.org/10.1007/s13314-012-0074-6.
Full textDissertations / Theses on the topic "Granati"
1
LIBERATO. "Stratigraphic, sedimentological and provenance study on the Permian-Triassic sequences of southern Gondwana: comparison between Victoria Land (Antarctica) and Tasmania and paleoenvironmental implications." Doctoral thesis, Università di Siena, 2020. http://hdl.handle.net/11365/1118448.
Full textAbstract:
La tesi di dottorato è stata svolta seguendo un approccio multidisciplinare che ha riguardato lo studio stratigrafico-sedimentologico, petrografico e geochimico di depositi fluviali Permo-Triassici affioranti in Terra Vittoria meridionale e settentrionale. Con lo scopo di ottenere e comprendere le varie peculiarità di ogni singola unità deposizionale (Permo-Triassica, affiorante ad Allan Hills, Terra Vittoria meridionale), è stato eseguito uno studio di dettaglio multidisciplinare con diverse tecniche e metodologie analitiche. I risultati prodotti sono stati utilizzati per comparare aree limitrofe come il Morris Basin (zona transizionale tra la TVm e TVs), in modo da poter ricostruire l’evoluzione geologico-stratigrafica.
I dati sono presentati nella Tesi nell’ordine seguente:
1) comprensione e ricostruzione geologico-stratigrafica dell’area di interesse ad Allan Hills (Terra Vittoria meridionale, TVm, Antartide)
2) analisi sedimentologica (analisi di facies)
3) analisi composizionale delle arenarie di Allan Hills (TVm) e Morris Basin (TVm-TVs, analisi modale con metodo Gazzi-Dickinson)
4) studio dei minerali pesanti presenti in sezione sottile (Allan Hills e Morris Basin, conteggio per clasti)
5) analisi composizionale dei granati e delle muscoviti detritici di Allan Hills (TVm)
6) geocronologia degli zirconi detritici di Allan Hills (TVm)
Nella prima parte del dottorato è stato fondamentale reinterpretare ed elaborare circa 800 metri di colonne stratigrafiche ottenute nella fase di campagna dai ricercatori in Antartide, per comprendere i rapporti stratigrafici e la geologia dell’area (punto 1). La sezione geologica del settore nord-est di Allan Hills mostra un andamento degli strati debolmente inclinati verso N-NE (monoclinale) di una decina di gradi. La successione Permo-Triassica affiora in relativa continuità fatta eccezione per aree con diffuse coperture detritiche-nivali e dicchi Giurassici.
Il punto 2 è stato acquisito con uno studio ad alta risoluzione (scala decimetrica) eseguendo un’analisi di facies, al fine di ricostruire i paleoambienti della successione di Allan Hills. Seguendo lo schema classificativo ed interpretativo di Miall (2014), più di una decina di litofacies e associazioni di facies sono state interpretate. Il risultato più rilevante sembrerebbe evidenziare fasi trasgressive nel Permiano medio-superiore e nel Triassico medio-superiore, come probabile risposta a cambiamenti morfo-strutturali bacinali dovuti a fattori tettonici e a possibili cambiamenti climatici (come evidenziato nella Formazione Feather Conglomerate).
In seguito, a scala microscopica sono state caratterizzate in modo quantitativo le arenarie (punti 3 e 4), al fine di poter individuare differenti petrofacies suddivise per unità formazionali. Differenze rilevanti sono state riscontrate tra le arenarie Permiane e quelle Triassiche; in primis una maggiore maturità composizionale dovuta ad un maggiore trasporto (più cicli di sedimentazione) e ad un clima umido con un weathering index intenso al passaggio PTT (Permian-Triassic Transition).
Allo stesso modo, lo studio composizionale del granato e della muscovite (punto 5) sembra evidenziare un maggiore grado metamorfico di provenienza, nel Permiano medio-superiore (Formazione della Weller Coal Measures) e Triassico medio-superiore (Formazione della Lashly), rispetto al Triassico inferiore (Feather Conglomerate). In quest’ultima infatti, le muscoviti sono meno ricche in fengite ed i granati diminuiscono drasticamente (nessun dato composizionale). Questo fenomeno indica probabilmente un repentino cambiamento climatico a favore dell’alterazione. Questo approccio è stato di aiuto nel definire ulteriormente le differenze tra le unità Permiane e Triassiche e le loro provenienze.
Con lo stesso scopo, sono state effettuate le datazioni su zirconi detritici di Allan Hills (TVm, punto 6). Tre aspetti fondamentali ne risultano:
- nei sedimenti Permiani lo spettro di età è più ampio e si hanno buone percentuali in tutti i range, variabili dal Devoniano all’Archeano. Picchi di età “greenvilliana” sono da evidenziare mentre non sono presenti zirconi Permo-Triassici.
- Gli zirconi detritici del Triassico inferiore hanno origine principalmente dall’Orogene di Ross, mostrando forse un unroofing regionale. Con un picco minore, ma pur sempre evidente, ci sono età “greenvilliane”.
- Nel Triassico medio-superiore si registra l’attività vulcanica Permo-Triassica del margine meridionale del Gondwana.
Sembra evidente come il bacino della Terra Vittoria meridionale fosse, durante il Permiano, morfologicamente separato dal bacino contiguo nelle Central Transantarctic Mountains (CTM). Un processo di cattura fluviale, probabilmente da porsi alla transizione tra il Permiano superiore ed il Triassico inferiore, potrebbe spiegare sia lo spettro composizionale che di età degli zirconi.
Una volta ottenuto un quadro completo di ogni singola unità stratigrafica, è stata effettuata una prima comparazione litologico-petrografica con una parte significativa di campioni arenacei sparsi per la Terra Vittoria (Morris Basin e Terra Vittoria settentrionale). Con la missione in Tasmania (febbraio 2019), è stato possibile confrontare in modo preliminare le arenarie delle successioni Tasmane coeve a quelle antartiche. Granulometricamente più fini di quelle del Victoria Group, mostrano rapporti sabbia/fango in alcuni casi confrontabili (dal Triassico inferiore al superiore). Il PTT sembra collocarsi tra superfici di discordanza semplice meno erosivi a sud rispetto al settore nord-nord-est del bacino Tasmano. Questo potrebbe essere attribuito ad una estrema variabilità degli ambienti sedimentari paleozoici e dei processi deposizionali e tettonici. Si rinvengono spessori ingenti di livelli di siltiti argillose rossastre (paleosuoli) con spessori molto variabili. Al contrario, dai dati di questo studio, il PTT ad Allan Hills potrebbe connotarsi per avere caratteri transizionali o di paraconcordanza.
Il confronto geologico tra macroregioni diverse e distanti, Terra Vittoria settentrionale e meridionale (TVs TVm), è stato anche rafforzato grazie allo studio analitico di tesi e articoli prodotti negli anni precedenti da altri studiosi. I risultati più importanti provengono dall’analisi di facies e dalle composizioni mineralogiche:
- Tutte le petrofacies del Morris Basin sono correlabili con quelle di Allan Hills (TVm)
- Una parte dei depositi del Permiano nel bacino della TVs sembra contenere più litici plutonici e metamorfici (circa 5%) rispetto a successioni analoghe ad Allan Hills ed in Terra Vittoria meridionale in generale.
- La litostratigrafia di Thern Promontory (TVs) sembra affine, in termini di facies e petrofacies, ad una fase post-glaciale Permiana, come evidenziano alcuni dati in TVm, anche se con spessori notevolmente ridotti.
- Le arenarie di Stewart Heights (TVs) e di Pudding Butte (Morris Basin) hanno caratteri sedimentologici e petrologici comparabili con quelle del Triassico inferiore ad Allan Hills (TVm).
- Nella Section peak Fm. (simil-Lashly Fm) sono composizionalmente litareniti e litareniti feldspatiche come quelle della SVL.
- I bacini della TVs e TVm, in un periodo compreso tra il Triassico medio-Giurassico inferiore, registrano la comparsa di litici vulcanici lavici (Formazioni di Section Peak e Lashly).
- Anche per i granati e le miche detritiche triassiche le composizioni sono correlabili tra la TVs e TVm.
In conclusione, il presente studio pone nuovi vincoli petro-stratigrafici e paleogeografici in Terra Vittoria meridionale e settentrionale, in quello che era il paleomargine meridionale del Gondwana. In particolare, lo studio sedimentologico e di provenienza dei sopracitati depositi ha consentito di produrre ed apportare una grande mole di nuovi dati, la cui elaborazione consente di evidenziare una storia geologica evolutiva ben più articolata e complessa di quella conosciuta.
2
Körner, Timo H. "Integration magnetooptisch aktiver Granate auf Nicht-Granat-Substraten." kostenfrei, 2008. http://d-nb.info/996081119/34.
Full text
3
Vesely, Avaria Valentina. "Prospección de raleadores químicos en granado (Punica granatum L.)." Tesis, Universidad de Chile, 2011. http://repositorio.uchile.cl/handle/2250/151254.
Full textAbstract:
Memoria para optar al título profesional de: Ingeniero Agrónomo Mención: FruticulturaLa prolongada floración del granado tiene como consecuencia una marcada heterogeneidad en el estado de desarrollo de los frutos al momento de la cosecha, lo cual implica que un alto porcentaje de ellos no llega a madurez. Este hecho evidencia la necesidad de raleo de frutos en los huertos de granado, práctica que, en la actualidad, se realiza de forma manual. El objetivo de este estudio fue evaluar diferentes reguladores de crecimiento como posibles raleadores químicos de flores y/o frutos de granado. Con este fin se realizaron cinco ensayos en un huerto comercial de granados de la variedad Wonderful ubicado en la Región Metropolitana, que consistió en la evaluación de cinco productos químicos, en cinco concentraciones diferentes cada uno: ácido naftalenacético (ANA), en un rango de concentraciones entre 0 y 40 mg L-1; ethephon (ET), en un rango de concentraciones entre 0 y 400 mg L-1; benciladenina (BA), en concentraciones entre 0 y 400 mg L-1; ácido giberélico (AG), en concentraciones entre 0 y 100 mg L-1; y aminoetoxivinilglicina (AVG), en un rango de concentraciones entre 0 y 200 mg L-1. Se realizaron dos aplicaciones del producto químico con un lapso de dos semanas entre ellas, comenzando la tercera semana de enero. Se evaluó la dinámica de caída de flores y frutos durante las seis semanas siguientes a la primera aplicación. En la cosecha se recolectó toda la fruta presente en el árbol, clasificando cada fruto según cobertura externa de color, cohorte de floración a partir de la cual se desarrolló y peso fresco. Los ensayos se analizaron mediante correlaciones y regresiones. El ET fue el único producto evaluado que presentó efecto raleador, disminuyendo la proporción de frutos de la segunda y tercera cohorte de floración. Adicionalmente, el ET incrementó el color de los frutos y redujo el peso fresco de los frutos de la primera cohorte de floración.
4
Foster, Pedro Luiz Luppi [UNESP]. "Geologia e petrologia do Maciço Palanqueta, Mina Bom Futuro, Rondônia." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144675.
Full textAbstract:
Submitted by PEDRO LUIZ LUPPI FOSTER null (luppifoster@gmail.com) on 2016-11-16T19:23:57Z
No. of bitstreams: 1
Tese_Mestrado_Pedro_Foster.pdf: 23543008 bytes, checksum: 970cd8b58cfa88e2188ef3b76510d096 (MD5)Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-11-23T12:41:25Z (GMT) No. of bitstreams: 1 foster_pll_me_rcla.pdf: 23543008 bytes, checksum: 970cd8b58cfa88e2188ef3b76510d096 (MD5)
Made available in DSpace on 2016-11-23T12:41:25Z (GMT). No. of bitstreams: 1 foster_pll_me_rcla.pdf: 23543008 bytes, checksum: 970cd8b58cfa88e2188ef3b76510d096 (MD5) Previous issue date: 2016-09-23
Topázio granitos são rochas ácidas ultrafracionadas que ocorrem sob a forma de stocks, cúpolas ou diques em suítes graníticas pós-orogênicas ou anarogênicas, e são caracterizadas por seu enriquecimento extremo em flúor, associação com elementos litófilos e relação direta com muitos depósitos primários de metais raros (ex. Sn, W, Ta e Nb) encontrados pelo mundo. A mina Bom Futuro localiza-se no município de Ariquemes, região centro-norte de Rondônia, e é umas das maiores produtoras de estanho do país e congrega dois morros contíguos denominados Bom Futuro e Palanqueta, este último sendo o representante em superfície do Maciço Palanqueta. No Maciço Palanqueta são reconhecidas 5 fácies graníticas, sendo 4 delas topázio granitos: biotita-álcali-feldspato-granito equigranular, topázio-zinnwaldita-álcali-feldspato-granito equigranular, topázio-zinnwaldita-álcali-feldspato-granito porfirítico, topázio-zinnwaldita-álcali-feldspato-granito pórfiro e topázio-zinnwaldita-álcali-feldspato-granito miarolítico, além de diques de aplito, veios de pegmatito e veios e pipes de greisen mineralizados em cassiterita. Os veios pegmatíticos encontram-se cortando os diques de aplito e estes as demais fácies graníticas. As relações de contato entre as fácies graníticas é brusca, mas só é identificada relação de idade entre as fácies topázio-zinnwaldita-álcali-feldspato-granito porfirítico e topázio-zinnwaldita-álcali-feldspato-granito pórfiro. As características de campo, petrográficas e geoquímicas do Maciço Palanqueta permitem classifica-lo como um maciço granítico multifásico, intraplaca, tipo A e integrante peraluminoso da Suíte Granitos Últimos de Rondônia. Apesar de cronologicamente correlatos a seguinte ordem para a colocação das fácies graníticas é proposta: biotita-álcali-feldspato-granito equigranular topázio-zinnwaldita-álcali-feldspato-granito equigranular topázio-zinnwaldita-álcali-feldspato-granito porfirítico topázio-zinnwaldita-álcali-feldspato-granito miarolítico topázio-zinnwaldita-álcali-feldspato-granito pórfiro. O Maciço Palanqueta ainda não possui seus limites físicos definidos, bem como sua variação faciológica em seção, o que implica na possibilidade de potencial metalogenético em profundidade, em acordo com outros exemplos de topázio granitos encontrados na literatura.
Topaz granites are acidic ultrafracionated rocks that occur in the form of stocks, domes or dykes in granitic post-orogenic or anarogenic suites, and are characterized by their extreme enrichment in fluorine, association with lithophile elements and direct relationship with many primary deposits of rare metals (eg. Sn, W, Ta and Nb) found around the world. The Bom Futuro mine is located in the county of Ariquemes, north-central region of Rondonia State, and is one of the largest tin producer in the country and brings together two adjacent hills called Bom Futuro and Palanqueta, the last one being the representative surface of the Palanqueta massif. At the Palanqueta massif are recognized 5 granitic facies, 4 of them of topaz granites: equigranular biotite-alkali-feldspar granite, equigranular topaz-zinnwaldita-alkali-feldspar granite, porphyritic topaz-zinnwaldita-alkali-feldspar granite, porphyry topaz-zinnwaldita- alkali-feldspar granite and miarolitic topaz-zinnwaldita-alkali-feldspar granite, and aplite dikes, pegmatitic veins and veins and pipes of greisen mineralized in cassiterite. The pegmatite veins are cutting the aplite dykes and these all the other granitic facies. The contact relationships between the granitic facies is abrupt, but age relationship are only identified between the porphyritic topaz-zinnwaldita-alkali-feldspar granite and porphyry topaz-zinnwaldita-alkali-feldspar granite facies. The field, petrographic and geochemical data of Palanqueta massif allow classifies it as a within plate, A type, peraluminous. multifacies granitic massif, and member of the Younger Granites of Rondonia Suite. Although chronologically related the following order for placement of the granitic facies is proposed: biotite alkali-feldspar granite equigranular topaz-zinnwaldita-alkali-feldspar granite equigranular topaz-zinnwaldita-alkali-feldspar granite porphyry topaz-zinnwaldita -álcali-feldspar granite miarolítico topaz-zinnwaldita-alkali-feldspar granite porphyry. The Palanqueta massif does not have its physical boundaries defined, as well as their facies variation in vertical section, which implies the possibility of depth metallogenic potential, in accordance with other examples of topaz granites found in the literature.
5
England, Richard W. "The ascent and emplacement of granitic magma : the Northern Arran granite." Thesis, Durham University, 1988. http://etheses.dur.ac.uk/6609/.
Full textAbstract:
This thesis is a study of the mechanisms by which granitic magmas rise through the crust to be empiaced at a level above their source, with particular reference to diapirisni. and how these mechanisms may be analysed by combined structural and petrological studies. The Northern Arran granite is used as an example of how this problem may be approached. The Northern Arran granite is a two component granite of Tertiary age intruded into structurally heterogeneous upper crustal rocks under regional tension. A synform concentric to the granite, synchronous with the development of a narrow thermal aureole, records the vertical ascent of a single body of magma with a hemispherical upper surface. Post ascent, radial expansion of this body, indicated by flattening strains parallel to its surface and superimposed on the concentric synform records a change in shape of the pluton. This was permitted by the reactivation of an existing fault which the pluton intersected during its ascent. Petrological studies of the outer coarse unit of the northern granite indicate that it is a single body of magma derived by differentiation of a crustally contaminated basaltic source. Theoretical modelling of the crystallisation of the coarse granite shows that textural and chemical variations, are consistent with solidification by sidewall crystallisation (liquid fractionation) but not fractional crystallisation. The inner (younger) fine granite is also a single body of magma derived from the same or a similar source as the coarse granite. The sharp undeformed contacts between the coarse and fine granites and the presence of internal sheets in the fine granite parallel to its contacts with the coarse granite are consistent with emplacement of the fine granite as a series of pulses which filled a propagating ring dyke fracture within the coarse granite. Theoretical modelling of the ascent of the coarse granite using the Hot Stokes equation indicates that bouyancy driven ascent aided by a reduction in wall rock viscosity controlled by the rate of heat loss of from the granite is a viable ascent mechanism. The patterns of strain in the aureole of the Northern Arran granite result from the ascent and emplacement of a single diapiric body. They provide examples of the types of structure which may be used to recognise and distinguish between diapiric ascent and radial expansion. This has important implications for the study of ballooning diapirs. The reactivation of an existing fault system during emplacement suggests that existing crustal structure can influence the final geometry of an intrusive body. It is shown that the complete evolution of the Northern Arran granite can be determined using a combination of structural and petrological data. Structural data provides constraints on the later stages of ascent and the emplacement of granitic plutons. Petrological data can be used to constrain the origin, early stages of ascent and the crystallisation of a magma body.
6
Castillo, Vera Mónica Denis. "Efecto de diferentes niveles de restricción hídrica sobre el desarrollo y producción de granado (Punica granatum L.) cv. Wonderful." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/151100.
Full textAbstract:
Memoria para optar al título profesional de: Ingeniero Agrónomo Mención Manejo de suelos y aguasDebido a que el granado (Punica granatum L.) var. Wonderful se cultiva principalmente en zonas de suelos marginales y con problemas de escasez de agua, y que la producción de fruta está relacionada con el agua que se suministre, se hace necesario conocer los efectos del déficit hídrico sobre variables fisiológicas, de crecimiento y productivas de la especie. Con dicho fin se aplicaron cuatro tratamientos con distintas tasas de riego en granados, en un predio ubicado en la comuna de Til-til, Región Metropolitana. En un suelo delgado con textura superficial franco arenosa y presencia de sustrato aluvial con matriz arenosa en profundidad.
7
SILVA, Mickey Anderson Paixão da. "Influência das características morfológicas de britas graníticas e gnaíssicas na resistência à compressão do concreto." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/18425.
Full textAbstract:
Submitted by Irene Nascimento (irene.kessia@ufpe.br) on 2017-03-23T18:49:28Z
No. of bitstreams: 2
license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5)
Dissertação Mickey Paixão.pdf: 4062224 bytes, checksum: 47b4af597c13bbbf32f479aa0e076a4a (MD5)Made available in DSpace on 2017-03-23T18:49:28Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação Mickey Paixão.pdf: 4062224 bytes, checksum: 47b4af597c13bbbf32f479aa0e076a4a (MD5) Previous issue date: 2016-08-09
Em virtude dos agregados constituírem os recursos minerais mais acessíveis e também serem responsáveis por uma enorme parcela do material consumido na construção civil, faz-se necessário um estudo mais aprofundado a respeito da utilização e aplicação dessa matéria prima. O objetivo principal é qualificar a relação entre os resultados de resistências à compressão do concreto, obtidos por meio de testes feitos em corpos-de-prova moldados com diferentes tipos de brita, de modo a identificar aquela que proporciona uma maior resistência no mesmo, quando submetido aos esforços uniaxiais de compressão. Para isso foram escolhidas amostras de rochas, sendo três granitos e três gnaisses para análise da qualidade do concreto produzido a partir das respectivas britas. As britas foram analisadas macroscopicamente e todas as amostras foram submetidas às mesmas etapas de britagem, e posteriormente o material resultante dessa etapa passou pelo peneirador mecânico. Através desse processo, avaliou-se individualmente o índice de forma, o módulo de finura e o percentual dos minerais com clivagem dos devidos tipos de rochas afim de entender melhor o motivo dos posteriores resultados do comportamento do concreto com relação à trabalhabilidade e resistência a compressão uniaxial para cada um dos tipos de brita. A escolha do tipo de cimento torna-se muito relevante para esta análise. Faz-se necessário a escolha de um cimento que dê margem para que o tipo de brita seja a variável mais importante e decisiva no processo de resistência. Observa-se também que o índice de forma está relacionado ao percentual de minerais presentes na rocha que apresentam planos de clivagem. O valor do índice de forma está diretamente relacionado aos teores de minerais com um ou mais planos de clivagem contidos em cada amostra. Por fim, ficou constatado que o concreto que apresentou a maior resistência à compressão foi confeccionado por agregados com os menores módulos de finura; já os agregados com o maior módulo de finura resultaram num dos concretos menos resistentes.
Because the aggregate constitute the most accessible mineral resources and also account for a huge portion of the consumed in construction material, it is necessary to further study regarding the use and application of this raw material. The main goal is to qualify the relationship between the results of resistance to the concrete compressive obtained by means of tests made on specimens test pieces molded with different types of gravel, in order to identify one that provides greater strength in that when subjected to uniaxial compression efforts. For this rock samples were selected: three and three granite gneiss for analysis of the quality of concrete produced from the respective gravel. The gravel was analyzed macroscopically and all samples were subjected to the same steps of crushing, and then the resulting material has passed this stage by mechanical sieving. Through this process, we assessed individually the form of an index, the fineness modulus and percentage of minerals with cleavage of proper rock types in order to better understand the reason for the subsequent behavior of concrete results regarding the workability and compressive strength uniaxial for each type of grit. The choice of the type of cement becomes very relevant to this analysis. It is necessary to choose a cement margin so that the type of grit is most important and crucial variable in resistance process. It is also observed that the form of an index is related to the percentage of minerals present in the rock show cleavage planes. The value of the medium index is directly related to mineral contents in one or more cleavage planes contained in each sample. Finally, it was found that the concrete with the highest compressive strength was made by households with the lowest fineness modules; since aggregates with higher fineness modulus resulted in the least resistant concrete.
8
Henrique-Pinto, Renato. "Metaconglomerados e rochas associadas do Grupo São Roque a noroeste da cidade de São Paulo: proveniência e implicações para a idade da sedimentação." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/44/44143/tde-11112008-115527/.
Full textAbstract:
O Grupo São Roque caracteriza-se por rochas de baixo grau metamórfico, depositadas em ambiente marinho com atividade vulcânica submarina. As ocorrências da Formação Morro Doce são dominadas por metarcóseos e metarenitos feldspáticos com expressivas lentes metaconglomeráticas, que formam uma seqüência considerada como unidade basal do Grupo São Roque. Os metaconglomerados, com o amplo predomínio de clastos graníticos, têm excelente potencial para identificação de suas fontes e idades. Rochas metavulcânicas ácidas e básicas intercaladas nesta seqüência constituem importante marcador tectônico e cronológico. O estudo petrográfico dos clastos graníticos dos metaconglomerados da Formação Morro Doce permitiu a identificação de quatro variedades petrográficas: biotita monzogranito porfirítico, biotita monzogranito inequigranular, biotita monzogranito equigranular e leucogranito inequigranular. O caráter comagmático entre os clastos é confirmado pelos dados petrográficos e geoquímicos. Rochas metavulcânicas ácidas que ocorrem intercaladas a metarcóseos e metaconglomerados, na região do Morro do Polvilho, correspondem a meta-traquidacitos e metariolitos porfiríticos. Os metarcóseos mostram afinidades geoquímicas com os clastos de granito dos metaconglomerados, e diferenciam-se das rochas metavulcânicas ácidas associadas pela geoquímica e pela petrotrama sedimentar composta predominantemente por feldspatos detríticos sub-angulosos. De características geoquímicas típicas de magmatismo intraplaca, em especial baixo mg# (~20), altos teores de Zr (560-730 ppm), Y e Nb, além de baixo Sr (70-120 ppm), as rochas metavulcânicas ácidas do Grupo São Roque apresentam similaridades com as metavulcânicas ácidas da base do Supergrupo Espinhaço. Datações U-Pb por LA-MC-ICP-MS em cristais de zircão extraídos das variedades predominantes de seixos graníticos revelaram idades Paleoproterozóicas (2199 ± 8.5 Ma e 2247 ± 13 Ma). Idades comparáveis só são encontradas regionalmente em núcleos do embasamento do Supergrupo Espinhaço (Complexo Mantiqueira) e Açungui (núcleos Tigre, Setuva e Betari). A idade de deposição dos metaconglomerados (1.75-1.79 Ga), indicada pelas datações U-Pb em rochas metavulcânicas intercaladas é consistente com a idade dos clastos (granito fonte), datados em 2.2 Ga, e com a ausência de indicações de contribuições de áreas-fontes mais jovens para os metassedimentos da Fm. Morro Doce.The São Roque Group is composed of low-grade metamorphic rocks deposited in marine environment with coeval volcanic activity. The Morro Doce Formation is dominated by metaarkose and feldspatic meta-sandstone with expressive metaconglomeratic lenses, which form a sequence regarded as the basal unit of São Roque Group. The metaconglomerates with wide prevalence of granite pebbles have excellent potential to identify their sources and ages. Metavolcanic acidic and basic rocks interspersed in this sequence are an important tectonic and geochronologic marker. The petrographic study of the granite pebbles from the Morro Doce Formation metaconglomerates allowed the identification of four petrographic varieties: porphyritic biotite monzogranite, inequigranular biotite monzogranite, equigranular biotite monzogranite and inequigranular leucogranite. The comagmatic character of these pebbles is confirmed by petrographic and geochemical data. Acid metavolcanic rocks interlayered with meta-arkose and metaconglomerates in the Morro do Polvilho region correspond to trachydacite and porphyritic meta-rhyolite. The metaarkose shows geochemical affinities with metaconglomerate granitic pebbles, and differs from the acid metavolcanic rocks both in their geochemical signature and in its sedimentary fabrics defined by the predominance of detritic subangulous feldspars. Their geochemical characteristics are typical of within-plate magmatism, especially the low mg # (~ 20), high Zr (560-730 ppm), Y, Nb, and low Sr (70-120 ppm), and is similar to the acid metavolcanics from the on Espinhaço Supergroup. U-Pb dating by LA-MC-ICP-MS in zircon crystals from the predominant varieties of granitic pebbles revealed Paleoproterozoic ages (2199 ± 8.5 Ma Ma and 2247 ± 13) for the main granitic source of the metaconglomerates. Comparable ages are found in the nuclei of Espinhaço Supergrup basament (Mantiqueira Complex) and Açungui (Tigre, Setuva and Betari nuclei). The depositional age of the metaconglomerates (1.75-1.79 Ga), indicated by U-Pb dating of interlayered metavolcanic rocks, is consistent with the age of the granitic source, (~2.2 Ga), and with the lack of signals of contribution from younger source areas for the Morro Doce Fm metasediments.
9
Yang, Wenjin. "Géochimie et minéralogie des granites de la région de Hetai, province de Guangdong, Chine méridionale = Geochemistry and mineralogy of granites in the Hetai area, Guangdong, South China /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1993. http://theses.uqac.ca.
Full textAbstract:
Thèse (D.R.Min.)-- Université du Québec à Chicoutimi, 1993.Thèse presentee en collaboration de l'Université du Quebec à Chicoutimi et Institute of geochemistry, Academia Sinica, China. CaQCU Document électronique également accessible en format PDF. CaQCU
10
Arrais, Júlio César de Pinheiro. "Caracterização geológica e tecnológica de rochas ornamentais dos granitóides porfiróides dos maciços Sorocaba, São Francisco, São Roque, Ibiúna, Piedade e Caucáia, Sudeste do Estado de São Paulo /." Rio Claro : [s.n.], 2006. http://hdl.handle.net/11449/103014.
Full textAbstract:
Orientador: Antonio Misson GodoyBanca: Antonio Carlos Artur
Banca: Tamar Milca Bortolozzo Galembeck
Banca: Antenor Braga Paraguassu
Banca: Cláudia Lopes de Moura
Resumo: Os estudos da qualificação como material ornamental e para revestimento foram realizados em rochas graníticas porfiróides dos maciços São Francisco, São Roque, lbiúna, Piedade e Caucaia, tendo sido analisados os principais litotipos que apresentam exeqüibilidade de lavra. Objetivaram ampliar a oferta das rochas ornamentais no mercado nacional, com padronização das características tecnológicas de novas variedades e sua adequada identificação e tipificação quanto aos aspectos mineralógicos, geológicos, geoquímicos, tecnológicos (físicos-mecânicos) e de susceptibilidade ao ataque químico, possibilitando a prevenção de problemas arquitetônicos. Estas rochas apresentam características estéticas com ampla gama de variedades e são muito bem aceitas pelo mercado consumidor. Atualmente, sem os estudos técnicos específicos, ocorrem problemas tecnológicos de resistência no dimensionamento das placas decorrendo em maiores custos para o empresariado do setor. Aliados aos fatores estéticos que favorecem a sua utilização para fins ornamentais e de revestimento, encontram-se a distribuição geológica e geográfica nas proximidades aos maiores pólos consumidores, à cidade de São Paulo e aos portos exportadores. Os resultados obtidos nos ensaios tecnológicos das variedades mostram que os parâmetros analisados situam-se dentro dos limites padrões estabelecidos pelas normas para granitos utilizados como rocha ornamental e para revestimento, quer para ambientes interiores, quer para exteriores.
Abstract: Studies for qualificaton as dimension stones and covering materials were carried out in prophiritic granitic rocks from São Francisco, São Roque, Ibiúna, Piedade and Caucaia massifs had been analyzed the major lithotypes with plowing potential of rocks. Objectify to enlarge de offer of those rocks as dimension stones into the Brazilian market with the patterns of technological characteristics of new varieties and their adequate identifying and typifying on mineralogical, geological, geochemical, technological (physical and mechanical) and susceptibility to chemical attack aspects, making possible the prevention of architectural problems. Those rocks present esthetic characteristics with wide range of varieties and are very weill accepted by the consuming market. Actualy, without specific technicai studies, occur technological problems of strength in the sizing of tbe tiles or plates elapsing in more elevate costs for the sector companies. Allied to the esthetic factors that are favorable to the use of those rocks as dimension stones and covering materials are the geological and geographic distribution in the proximities to the greatest consuming poles, to the São Paulo city and to fim exporting harbours. Obtained results in the technological analyses of the varieties show that the parameters as sited into the limit standards established by the regulations for granites used as covering and dimension rocks, both for internal and external environment.
Doutor
Books on the topic "Granati"
1
Gabriėli͡an, N. Zerno granata. [Russia: s.n., 1990.
Find full text
2
Granato, Cristina. Cristina Granato. Rio de Janeiro, RJ: Aeroplano Editora, 2010.
Find full text
3
Granato, Cristina. Cristina Granato. Rio de Janeiro, RJ: Aeroplano Editora, 2010.
Find full text
4
Posledni͡a︡i͡a︡ granata. Moskva: "Sov. Rossii͡a︡", 1987.
Find full text
5
Akhmetov, Spartak. Grani granata. Moskva: "Nauka,", 1990.
Find full text
6
Flak, Bożena Anna. Owoc granatu. London: Veritas Foundation, 1989.
Find full text
7
St. George Red Granite Co. The act of incorporation and the by-laws of the St. George Red Granite Co. (Limited). [St. John, N.B.?: s.n.], 1986.
Find full text
8
Tatarinova, Nina. Granata t͡s︡vet: Stikhi. Tashkent: Izd-vo lit-ry i iskusstva im. Gafura Guli͡a︡ma, 1985.
Find full text
9
Lur'e, Ilona. Zërna granata: Stikhotvorenii͡a. Moskva: Mosty kul'tury, 2004.
Find full text
10
Gaziev, R. M. Posledni͡a︡i͡a︡ granata Gadzhieva. Makhachkala: Daguchpedgiz, 1995.
Find full textBook chapters on the topic "Granati"
1
Gatrell, Jay D., Gregory D. Bierly, and Ryan R. Jensen. "Grants and Grant Writing." In Research Design and Proposal Writing in Spatial Science, 51–59. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2281-1_6.
Full text
2
Gatrell, Jay D., Gregory D. Bierly, Ryan R. Jensen, and Rajiv R. Thakur. "Grants and Grant Writing." In Research Design and Proposal Writing in Spatial Science, 59–68. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60019-8_6.
Full text
3
Arndt, Nicholas. "Granite." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_665-3.
Full text
4
Arndt, Nicholas. "Granite." In Encyclopedia of Astrobiology, 999. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_665.
Full text
5
Arndt, Nicholas. "Granite." In Encyclopedia of Astrobiology, 685. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_665.
Full text
6
Arndt, Nicholas. "Granite." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-642-27833-4_665-4.
Full text
7
Daunfeldt, Sven-Olov, Daniel Halvarsson, Patrik Gustavsson Tingvall, and Alexander McKelvie. "Do Targeted R&D Grants toward SMEs Increase Employment and Demand for High Human Capital Workers?" In International Studies in Entrepreneurship, 175–98. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94273-1_10.
Full textAbstract:
AbstractMost previous studies on the employment effects of government R&D grants targeting SMEs are characterized by data-, measurement-, and selection problems, making it difficult to construct a relevant control group of firms that did not receive an R&D grant. We investigate the effects on employment and firm-level demand for high human capital workers of two Swedish programs targeted toward growth-oriented SMEs using Coarsened Exact Matching. Our most striking result is the absence of any statistically significant effects. We find no robust evidence that the targeted R&D grant programs had any positive and statistically significant effects on the number of employees recruited into these SMEs, or that the grants are associated with an increase in the demand for high human capital workers. The lack of statistically significant findings is troublesome considering that government support programs require a positive impact to cover the administrative costs associated with these programs.
8
Bouchez, Jean Luc. "Granite is Never Isotropic: An Introduction to AMS Studies of Granitic Rocks." In Petrology and Structural Geology, 95–112. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-1717-5_6.
Full text
9
Eisenberg, Mark J. "Grants." In The Physician Scientist's Career Guide, 137–48. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-60327-908-6_11.
Full text
10
von Engelhardt, Wolf. "Granit." In Goethe im Gespräch mit der Erde, 83–118. Stuttgart: J.B. Metzler, 2003. http://dx.doi.org/10.1007/978-3-476-02940-9_8.
Full textConference papers on the topic "Granati"
1
Güemez Ricalde, Francisco J., Edith Graciela Mondragón, and Dew Gabriela Mendoza. "Functional drink added with extracts of shell in Granada (Punica granatum) with virucidal Property." In The 4th International Virtual Conference on Advanced Scientific Results. Publishing Society, 2016. http://dx.doi.org/10.18638/scieconf.2016.4.1.354.
Full text
2
Liu, Yan, Yansha Deng, Maged Elkashlan, Arumugam Nallanathan, and George K. Karagiannidis. "Multiple Configured-Grants Optimization in Grant-Free NOMA for mURLLC Service." In ICC 2022 - IEEE International Conference on Communications. IEEE, 2022. http://dx.doi.org/10.1109/icc45855.2022.9838541.
Full text
3
HUDEC, Martin. "Pork barrel politics in context of Action Plan - Support of Least Developed Districts." In Current Trends in Public Sector Research. Brno: Masaryk University Press, 2020. http://dx.doi.org/10.5817/cz.muni.p210-9646-2020-3.
Full textAbstract:
The aim of the paper Pork barrel politics in context of Action Plan Support of Least Developed Districts is to find out and describe if and by which means the attributes of Pork barrel politics were present in redistribution of funds from Regional grants, which were part of Action Plan – Support of Least Developed Districts. Secondary aim is to see how receiving of this grant could have helped in reelection of incumbent in next election. An Index of political patronage was assembled to measure the level of pork barreling. Based on party affiliation, mayors with connections to government were not highly favored when receiving grant, not even in the case of affiliation with party, which redistributed the grants. Neither there were no significant differences in the odds of reelection based on whether the incumbent received a grant or not, that is an unexpected result relative to other research in the field
4
Lokajícek, T., M. Petružálek, T. Svitek, R. Vasin, and H. R. Wenk. "Westerly Granite Anisotropy Study." In 56th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2022. http://dx.doi.org/10.56952/arma-2022-0850.
Full textAbstract:
ABSTRACT: Westerly granite (WG) is well known rock, believed to be isotropic. We studied four samples of WG heated between 100°C and 600°C, by ultrasonic sounding on spherical samples under hydrostatic pressure up to 400 MPa, neutron diffraction on identical samples and scanning electron microscopy (SEM). Thermal treatment studies are important for localities like nuclear waste storages, geothermal projects, rock and earthquake mechanics. All measurements were done at room temperature. The 3D distribution of P-wave velocities at high pressures reflects intrinsic structure and even though the anisotropy is low, the orientation of the minimum velocity corresponds to the highly preferred orientation of plagioclase (010) and biotite (001). Image analyses showed that there is also preferred orientation of microcracks regardless of their size and thermal treatment level. Neutron diffraction measurements of the samples heated to 100°C and 600°C confirm weak intrinsic elastic anisotropy, which remain unchanged due to the thermal treatment. We can assume that in Westerly granite there are two types of anisotropy: crystal preferred orientation which was formed during igneous crystallization and second one is due to the oriented microcracks which have been formed during tectonic exhumation or during sample excavation in the quarry. Both seems to be unrelated. 1. INTRODUCTION Westerly granite has been studied for decades and its properties are very well known. There were studied mechanical properties, elastic properties, development of cracks introduced by uniaxial or triaxial loading, thermal heating, study of permeability, study of fracturing process by acoustic emission, modelling of crack systems and plenty of others. Westerly granite is considered as fine grained, homogeneous material, isotropic and therefore it is often discussed or even used as a standard for comparison with other granitic rocks. Quantification of elastic properties of granites is important to determine crustal seismic velocities and stress orientation. Generally, it is assumed that granitic rocks are elastically isotropic. In this paper, we study influence of thermal cracks and crack induced anisotropy on P-wave propagation in spherical samples of Westerly granite at different confining pressures. Experimental elastic wave velocity distributions in Westerly granite are compared to the model based on neutron diffraction data on mineral composition and mineral preferred orientations. Due to high penetration depth of thermal neutrons, information on a large representative volume of geomaterial is obtained; and the method of neutron diffraction allows to investigate same bulk samples that were used for elastic wave propagation study. Thus, ultrasonic sounding (US) and neutron diffraction form a pair of complementary methods suitable for in-depth analysis of elastic anisotropy of rocks.
5
Lee Bower, Linda. "AI Decision Making for Allocating Government Grant Funds." In Human Interaction and Emerging Technologies (IHIET-AI 2022) Artificial Intelligence and Future Applications. AHFE International, 2022. http://dx.doi.org/10.54941/ahfe100869.
Full textAbstract:
This paper discusses the use of Artificial Intelligence in government decision making with a case study on the use of Artificial Intelligence to distribute government grant funds. Artificial Intelligence enables autonomous systems and decision support aids. A formal process is very important when designing a system to make decisions autonomously with Artificial Intelligence. The Office of Justice Programs, an agency of the U.S. Department of Justice, focuses on crime prevention; it provides research and development assistance to state, local, and tribal criminal justice agencies. OJP’s public safety grants involve about $2 billion distributed to some 2,000 grantees. In the past, the agency had no standard approach for determining who received grants. Then, about 2011, OJP began introducing objective measures into the grant review process and automated the process. With AI, the new system resulted in increased accuracy and consistency of decisions, as well as a more efficient review process.
6
McGarr, Jeffery Tyler, and Craig Dietsch. "MINERALOGY OF GRANITIC PEGMATITES FROM THE SISCOWIT GRANITE, STAMFORD AND POUND RIDGE 7.5 MINUTE QUADRANGLES, SOUTHWESTERN CONNECTICUT." In 54th Annual GSA Northeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019ne-328401.
Full text
7
Garrido, Pedro L., and Joaquín Marro. "Computational Physics." In II Granada Lectures. WORLD SCIENTIFIC, 1993. http://dx.doi.org/10.1142/9789814536691.
Full text
8
Arbain, Azizi, Mohd Hafiz Zawawi, Mohd Rashid Mohd Radzi, Nurul Husna Hassan, and Ahmad Zhafran Ahmad Mazlan. "Natural frequencies comparison between the pure granite and bonded granite-concrete." In PROCEEDINGS OF GREEN DESIGN AND MANUFACTURE 2020. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0044239.
Full text
9
Keesling, Raelene, and Jonathan D. Price. "MOUNT SCOTT GRANITE ENCLAVES, WICHITA GRANITE GROUP, OKLAHOMA: CHARACTERIZATION, COMPARISON, CLASSIFICATION." In South-Central Section - 56th Annual Meeting - 2022. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022sc-374010.
Full text
10
Newcomb, Sally. "THE CONTROVERSIAL GRANITE CONTROVERSY." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-334628.
Full textReports on the topic "Granati"
1
Owens, Vance. Sun Grant Initiative Regional Biomass Feedstock Partnership Competitive Grants Program. Office of Scientific and Technical Information (OSTI), December 2016. http://dx.doi.org/10.2172/1389636.
Full text
2
Shanks, Rachel. School Clothing Grant in Scotland: Policy Briefing. University of Aberdeen, August 2022. http://dx.doi.org/10.57064/2164/19088.
Full textAbstract:
A researcher at the University of Aberdeen has found that almost 20% (n=70) of secondary schools in Scotland specify an exclusive supplier for school uniform. The research shows that almost every secondary school has a compulsory uniform (over 96%). Of the 343 schools with a compulsory uniform, 320 uniforms include a school tie, 235 include a blazer and 200 schools ban jeans. While the Scottish Government has called for the automatic payment of benefits such as the national minimum clothing grant , only 6 local authorities make automatic awards of this grant when families are applying for other benefits. Nine local authorities roll over the school clothing grant into the next school year without requiring families to re-apply and 1 local authority has both automatic grants and rollover of school clothing grant in place.
3
Fiorentin, Florencia, Mariano Pereira, and Diana Suarez. Open configuration options The Gender Gap in Public S&T Funding: The Matilda Effect in STEM Disciplines in Argentina. Inter-American Development Bank, January 2022. http://dx.doi.org/10.18235/0004017.
Full textAbstract:
This study explores the presence of gender bias in public grants for science and technology (S&T) activities known as the Matilda effect in STEM disciplines (science, technology, engineering, and mathematics) in Argentina. The empirical analysis is based on the Scientific and Technological Research Projects program (PICT in Spanish) for the period 20032015 and found that female researchers are less likely to be awarded the first time they apply for a research grant than their male counterparts (-6.2 percentage points, or p.p.). Even for follow-on applications after the first one, without having been awarded before, female researchers remain less likely to be awarded (-3.8 p.p.). However, the probability of being recurrently awarded known as the Matthew effect is the same for both male and female researchers. This paper concludes that female researchers in STEM suffer disadvantages in the allocation of public funds to finance their research projects. Only those female researchers that overcome the initial barriers and obtain their first grant can take advantage, as their male counterparts do, of the Matthew effect that makes them more likely to obtain further awards. These results suggest the need for policies aiming at reducing the initial gender gap in accessing public grants for female researchers in STEM.
4
van den Boogaard,, Vanessa, and Fabrizio Santoro. Co-Financing Community-Driven Development Through Informal Taxation: Experimental Evidence from South-Central Somalia. Institute of Development Studies (IDS), September 2021. http://dx.doi.org/10.19088/ictd.2021.016.
Full textAbstract:
Community contributions are often required as part of community-driven development (CDD) programmes, with payment encouraged through matching grants. However, little remains known about the impact of matching grants, or the implications of requiring community contributions in order for communities to receive development funding. This paper describes research where we partner with two non-governmental organisations (NGOs) – one international and one Somali – and undertake a randomised control trial of a CDD matching grant programme designed to incentivise informal contributions for local public goods in Gedo region in south-central Somalia. We rely on household survey data collected from 1,297 respondents in 31 treatment and 31 control communities, as well as surveys of village leaders and data on informal contributions from the mobile money platform used by community leaders to collect revenue. Two key findings emerge. First, our research shows that working with communities and incentivising informal revenue generation can be an effective way to deliver public goods and to support citizens and communities. Second, building on research exploring the potential for development interventions to spur virtuous or adverse cycles of governance, we show that development partners may work directly with community leaders and informal taxing institutions without necessarily undermining – and indeed perhaps strengthening – state legitimacy and related ongoing processes of statebuilding in the country. Indeed, despite playing no direct role in the matching grant programme, taxpayer perceptions of the legitimacy of the local government improved as a result of the programme. These findings deepen our understanding of how community contributions may be incentivised through matching grant programmes, and how they may contribute to CDD and public goods provision in a context of weak institutional capacity.
5
Sinclair, W. D. Granitic pegmatites. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/208026.
Full text
6
Susskind, Lawrence E., Susan L. Podziba, and Eileen Babbitt. Granite Construction Co. Fort Belvoir, VA: Defense Technical Information Center, August 1989. http://dx.doi.org/10.21236/ada225177.
Full text
7
Rossman, Daniel, Julia Karon, and Rayane Alamuddin. The Impacts of Emergency Micro-Grants on Student Success: Evaluation Study of Georgia State University’s Panther Retention Grant Program. Ithaka S+R, March 2022. http://dx.doi.org/10.18665/sr.316611.
Full text
8
Swaja, R. E., and W. D. Cottrell. Results of the radiological survey at the Granite City Steel facility, Granite City, Illinois. Office of Scientific and Technical Information (OSTI), July 1990. http://dx.doi.org/10.2172/6605990.
Full text
9
Detmold, William. Grant Summary. Office of Scientific and Technical Information (OSTI), April 2019. http://dx.doi.org/10.2172/1507295.
Full text
10
Buettner, Edwin W., and V. Lance Nelson. Smolt Monitoring at the Head of Granite Reservoir and Lower Granite Dam, 1989 Annual Report. Office of Scientific and Technical Information (OSTI), April 1990. http://dx.doi.org/10.2172/6854896.
Full text