50 research outputs found
Desempenho produtivo de genótipos de girassol cultivados nas safrinhas 2011 e 2012.
O presente trabalho teve como objetivo avaliar o desempenho produtivo, em grãos e em óleo, de genótipos de girassol cultivados nas safrinhas 2011 e 2012
Informes da avaliação de genótipos de girassol 2011/2012 e 2012.
Características gerais da Rede de Ensaios de Avaliação de Genótipos de Girassol. Resultados dos Ensaios Finais de Primeiro e Segundo Ano ? safra 2011/2012: Encruzilhada do Sul (RS), Vacaria (RS), Hulha Negra (RS), Caxias do Sul (RS), Londrina (PR), Curitiba (RS). Locais não considerados na análise conjunta. Análise conjunta. Resultados dos Ensaios Finais de Primeiro e Segundo Ano ? safra 2011/2012: Passo Fundo (RS), Rio Pardo (RS), São Gabriel (RS), Veranópolis (RS), Londrina (PR), Campo Mourão (PR), Umuarama (PR). Locais não considerados na análise conjunta . Análise conjunta. Resultados do Ensaios Finais de Segundo Ano ? safrinha 2012: Projeto Jaíba (MG), Planaltina (DF), Rio Verde (GO), Vilhena (RO) Ensaio A, Vilhena (RO) Ensaio B, Teresina (PI), Uruçuí (PI), São João do Piauí (PI), Mata Roma (MA), Colinas (MA). Locais não considerados na análise conjunta. Análise conjunta. Resultados dos Ensaios Finais de Primeiro Ano ? safrinha 2012: Nova Porteirinha (MG), Uberlândia (MG), Planaltina (DF), Palmas (TO), Vilhena (RO) Ensaio A, Vilhena (RO) Ensaio B, Vilhena (RO) Ensaio C. Locais não considerados na análise conjunta. Análise conjunta. Lista dos genótipos de girassol avaliados e registrados no Ministério da Agricultura, Pecuária e Abastecimento ? MAPA.bitstream/item/97782/1/Ana-Doc-340-baixa.pd
Connective tissue anomalies in patients with spontaneous cervical artery dissection.
OBJECTIVE: To investigate the prevalence of connective tissue abnormalities in patients with spontaneous cervical artery dissections (sCeAD). METHODS: We systematically assessed clinically detectable signs of connective tissue aberration in a series of consecutive patients with sCeAD and of age- and sex-matched patients with ischemic stroke unrelated to CeAD (non-CeAD IS) by a standard examination protocol including 68 items, and performed extensive molecular investigation for hereditary connective tissue disorders in all patients with sCeAD. RESULTS: The study group included 84 patients with sCeAD (mean age, 44.5 ± 7.8 years; 66.7% men) and 84 patients with non-CeAD IS. None of the patients with sCeAD met clinical or molecular diagnostic criteria for established hereditary connective tissue disorder. Connective tissue abnormalities were detected more frequently in the group of patients with sCeAD than in the group of those with non-CeAD IS (mean number of pathologic findings, 4.5 ± 3.5 vs 1.9 ± 2.3; p < 0.001). Eighty-one patients (96.4%) in the sCeAD group had at least one detectable sign compared with 55 patients (66.7%) in the group with non-CeAD IS (p < 0.001). Skeletal, ocular, and skin abnormalities, as well as craniofacial dysmorphisms, were the clinical signs more strongly associated with sCeAD. Signs suggesting connective tissue abnormality were also more frequently represented in patients with sCeAD than in patients with traumatic CeAD (28.6%, p < 0.001; mean number of pathologic findings, 1.7 ± 3.7, p = 0.045). CONCLUSIONS: Connective tissue abnormalities are frequent in patients with sCeAD. This reinforces the hypothesis that systemic aberrations of the connective tissue might be implicated in the pathogenesis of the disease
A focus on selected perspectives of the NUMEN project
The use of double charge exchange reactions is discussed in view of their application to extract information that may be helpful to determinate the nuclear matrix elements entering in the expression of neutrinoless double beta decay half-life. The strategy adopted in the experimental campaigns performed at INFN - Laboratori Nazionali del Sud and in the analysis methods within the NUMEN project is briefly described, emphasizing the advantages of the multi-channel approach to nuclear reaction data analysis. An overview on the research and development activities on the MAGNEX magnetic spectrometer is also given, with a focus on the chosen technological solutions for the focal plane detector which will guarantee the performances at high-rate conditions
Trasporto merci pericolose su strada: metodologia di analisi e relative criticità nell'ambito di uno studio condotto in regione Lombardia
Negli ultimi anni, anche a fronte di numerosi incidenti in cui sono state coinvolte sostanze pericolose, è in atto una crescente attenzione da parte degli enti preposti verso tale problematica.
Tra le diverse forme di rischio tecnologico, il trasporto di merci pericolose costituisce un potenziale rischio d’incidente rilevante per il territorio e assume particolare rilevanza la possibilità di valutare sia la probabilità che la grandezza dell’evento in relazione all’ambiente interessato anche al fine di programmare azioni di prevenzione e strategie di intervento.
Nell’ambito dell’ Accordo per la condivisione delle conoscenze e la sperimentazione di metodologie nel settore della prevenzione e del controllo dei rischi di incidenti rilevanti stipulato il 11 Novembre 2005 tra Ministero dell’Ambiente e della Tutela del Territorio e del Mare e Regione Lombardia” è stata svolta un’attività di ricerca in merito al trasporto di sostanze pericolose in Lombardia, denominata “Piano Logistica Trasporti Pericolose a livello Regionale” (di seguito Piano Logistica).
Si tratta del primo accurato studio a livello regionale sui rischi nella movimentazione di merci pericolose con un duplice obiettivo: la definizione di una metodologia prototipale in grado di fornire al Ministero materiale adeguato ad una sua replicabilità in altri ambiti regionali italiani; la disponibilità di modelli di calcolo, che da un lato consentono l’ottenimento della fotografia dei rischi allo stato attuale, e dall’altro si prestano ad un utilizzo previsionale per varie ipotesi di intervento relativi ai vettori impiegati, alla possibilità di apertura al traffico di nuove arterie stradali e all’intermodalità. Tali modelli sono applicati alla realtà della regione Lombardia.
Lo scopo del presente articolo è quello di descrivere, seppure sinteticamente, l’approccio metodologico utilizzato e le criticità di analisi emerse nello svolgimento delle attività del Piano Logistica. Nonostante lo studio abbia incluso le diverse modalità di trasporto, l’attenzione è qui maggiormente rivolta al trasporto stradale
Phase transition in poly(vinylidene fluoride) investigated with micro-Raman spectroscopy
The phase transition from the non-polar a-phase to the polar beta-phase of poly(vinylidene fluoride) (PVDF) has been investigated using micro-Raman spectroscopy, which is advantageous because it is a nondestructive technique. Films of alpha-PVDF were subjected to stretching under controlled rates at 80 degrees C, while the transition to P-PVDF was monitored by the decrease in the Raman band at 794 cm(-1) characteristic of the a-phase, along with the concomitant increase in the 839 cm-1 band characteristic of the P-phase. The alpha ->beta transition in our PVDF samples could be achieved even for the sample stretched to twice (2 X -stretched) the initial length and it did not depend on the stretching rate in the range between 2.0 and 7.0 mm/min. These conclusions were corroborated by differential scanning calorimetry (DSC) and X-ray diffraction experiments for PVDF samples processed under the same conditions as in the Raman scattering measurements. Poling with negative corona discharge was found to affect the a-PVDF morphology, improving the Raman bands related to this crystalline phase. This effect is minimized for films stretched to higher ratios. Significantly, corona-induced effects could not be observed with the other experimental techniques, i.e., X-ray diffraction and infrared spectroscopy
Diagnosis of high-grade prostatic intraepithelial neoplasia: The impact of the number of biopsy cores at initial sampling on cancer detection after a saturation re-biopsy
Objectives: To evaluate factors that may predict prostate cancer (PCa) detection after initial diagnosis of high-grade prostatic intraepithelial neoplasia (HGPIN) on 6-24 cores prostatic biopsies (PBx). Material and Methods: We retrospectively evaluated 193 patients submitted from 1998 to 2007 to prostate re-biopsy after initial HGPIN diagnosis in three urologic departments. HGPIN diagnosis was obtained on initial systematic PBx with 6 to 24 random cores. All patients were re-biopsied with a "saturation" PBx with 18-26 cores with a median time to re-biopsy of 12 months. All slides were reviewed by expert uro-pathologists. Results: Plurifocal HGPIN (pHGPIN) was found in 103 patients and monofocal HGPIN (mHGPIN) in 90. Seventy-two and 121 patients were submitted to > 12-core initial biopsy and 64 12-core, respectively. Overall PCa detection at re-biopsy was 28.4%. PSA (6.7 vs 8.5 ng/ml; p = 0.029) and age (64 vs 68 years; p = 0.005) were significantly higher in patients with PCa at re-biopsy. PCa detection was significantly higher in patients who underwent a 64 12-core initial PBx than in those with > 12-core (35.5% vs 16.8%; p = 0.03), and in patients with pHGPIN than in those with mHGPIN (34.9% vs 21%; p = 0.035). At multivariable analysis, PSA value (p = 0.007; HR:1.18), prostate volume (p = 0.01; HR:0.966), age (p < 0.001; HR:1.15), pHGPIN (p = 0.003; HR:2.97) and 6412-core initial biopsy (p = 0.012; HR:3.62) were independent predictors of PC detection. We further analysed the 2 groups of patients submitted to 64 12-core and > 12-core initial PBx. Plurifocal HGPIN and older age at biopsy were independent predictors in patients with 64 12-core initial PBx. On the contrary, in patients with > 12-core initial biopsy, higher PSA values and lower prostate volume were independent predictors of PC detection. Conclusions: PCa detection on saturation re-biopsy after initial diagnosis of HGPIN is significantly higher in patients submitted to 64 12-core than those submitted to > 12-core initial PBx. In patients with 64 12-core initial biopsy pHGPIN and older age were predictors of PCa detection at re-biopsy. In patients with > 12-core initial biopsy, higher PSA values and lower prostate volume was associated to an increased risk of PCa detection at re-biopsy
Cardiology units and organizational models of heart transplantation centers: A survey by the Italian Association of Hospital Cardiologists-Italian Society for Organ Transplantation (ANMCO-SITO)
Background. The extent and quality of the involvement of cardiology units in health programs delivered by Italian centers for heart transplantation (HTx) have not been investigated previously. Methods. The Italian Association of Hospital Cardiologists (ANMCO) and the Italian Society for Organ Transplantation (SITO) developed and delivered a nationwide survey to the Directors of the Italian centers for HTx to investigate the extent to which cardiology units contribute to HTx programs. The survey investigated: (i) the organization of the centers and institutional frame under which cardiology units contributed to HTx programs; (ii) the volumes of procedures and clinical services delivered by cardiology units to HTx centers for listing patients, following those waiting for HTx, managing acute heart failure, selecting and allocating organs to recipients, following and managing organ rejection after HTx. Results. Of the 14 Italian centers involved, 13 provided full responses to the survey. Between 2017-2019, on average, 46% of the respondents performed up to 15 HTx/year, and additional 46% performed between 16 and 30 HTx/year. Of the respondents, 62% were included in a department of cardiac Surgery which did not include a cardiology unit; furthermore, 54% declared not to be included in a formal network for heart failure management. Cardiology units were the source for referrals of candidates to HTx in 85% cases. Of the respondents, 15% declared to be able to provide cardiological services thorough intra-center multidisciplinary team including cardiologists, whereas cardiological services were outsourced in 61% of the respondents. The clinical follow-up of patients waiting for HTx was performed directly by surgeons in 38% of the respondents. Worsening heart failure was managed directly by the HTx center in 33% of the cases using dedicated beds. Post-HTx follow-up, including endomyocardial biopsy, involved external cardiology units in less than 25% of the centers. Conclusions. The ANMCO-SITO survey shows that in Italy a very wide variability exists in terms of organization of HTx centers and their relationships with cardiology units for delivering specific cardiological services and procedures. In large majority, patient referral to HTx centers is mediated by cardiology units, whereas HTx was rarely included in a structured cardiological network for heart failure management
The investigation of α→β phase transition in poly(vinylidene fluoride) (PVDF)
The phase transition from the non-polar α-phase to the polar β-phase of poly(vinylidene fluoride) (PVDF) has been investigated using micro-Raman spectroscopy, which is advantageous for being a non-destructive technique. Films of α-PVDF were subjected to stretching under controlled rates and at 80°C, the transition to β-PVDF being monitored by the decrease in the Raman band at 794 cm-1 characteristic of the α-phase, with the concomitant increase in the 839 cm-1 band characteristic of the β-phase. Poling with negative corona discharge was found to affect the a-PVDF morphology improving the Raman bands related to this crystalline phase. This effect is minimized for films stretched to higher ratios. Significantly, corona-induced effects could not be observed with the other experimental techniques, viz. X-ray diffraction and infrared spectroscopy
Diagnosis of high-grade prostatic intraepithelial neoplasia: the impact of the number of biopsy cores at initial sampling on cancer detection after a saturation re-biopsy.
OBJECTIVES: To evaluate factors that may predict prostate cancer (PCa) detection after initial diagnosis of high-grade prostatic intraepithelial neoplasia (HGPIN) on 6-24 cores prostatic biopsies (PBx).
MATERIAL AND METHODS: We retrospectively evaluated 193 patients submitted from 1998 to 2007 to prostate re-biopsy after initial HGPIN diagnosis in three urologic departments. HGPIN diagnosis was obtained on initial systematic PBx with 6 to 24 random cores. All patients were re-biopsied with a "saturation" PBx with 18-26 cores with a median time to re-biopsy of 12 months. All slides were reviewed by expert uro-pathologists.
RESULTS: Plurifocal HGPIN (pHGPIN) was found in 103 patients and monofocal HGPIN (mHGPIN) in 90. Seventy-two and 121 patients were submitted to > 12-core initial biopsy and 12-core (35.5% vs 16.8%; p = 0.03), and in patients with pHGPIN than in those with mHGPIN (34.9% vs 21%; p = 0.035). At multivariable analysis, PSA value (p = 0.007; HR:1.18), prostate volume (p = 0.01; HR:0.966), age (p 12-core initial PBx. Plurifocal HGPIN and older age at biopsy were independent predictors in patients with 12-core initial biopsy, higher PSA values and lower prostate volume were independent predictors of PC detection.
CONCLUSIONS: PCa detection on saturation re-biopsy after initial diagnosis of HGPIN is significantly higher in patients submitted to 12-core initial PBx. In patients with 12-core initial biopsy, higher PSA values and lower prostate volume was associated to an increased risk of PCa detection at re-biopsy