Androgenesis induction in microspore culture of sweet pepper (Capsicum annuum L.)

Csaba Lantos,Aniko´ Ge´mes Juhasz,Pa´l Va´gi,Ro´bert Miha´ly,Zolta´n Kristo´f,Ja´nos Pauk 한국식물생명공학회 2012 Plant biotechnology reports Vol.6 No.2

Isolated microspore culture experiments were carried out in sweet pepper (Capsicum annuum L.) F1hybrid genotypes. In the first experiment, four culture media (W14, B5, MS and NLN) were compared to test their effectiveness in inducing the formation of microsporederived structures in two genotypes. The experiments revealed the superiority of B5 medium. In the second experiment, the effects of different ratios of 2,4-dichlorophenoxyacetic acid (2,4-D) (0, 0.1, 0.2 and 0.5 mg l-1) and kinetin (0, 0.2 and 0.5 mg l-1) were also investigated in B5medium with two genotypes. The effect of growth regulators were investigated on the production of microsporederived calli and embryo-like structures (ELSs), the ratio of the two and plant regeneration (number of regenerated plantlets) in microspore culture. The histological experiments revealed the differences between the microsporederived ELSs and calli. The most promising results were obtained on the investigated parameters in the presence of 0.1 mg l-1 2,4-D and 0.2 mg l-1 kinetin producing the highest number of plantlets in both genotypes tested. In the response of 11 genotypes, the androgenesis induction was successful in each sweet pepper genotypes tested using the best basic medium and growth regulators combination. In case of 11 genotypes, the number of ELSs ranged from 20 to 100/Petri dish (an average of 48.1 ELS/Petri dish),while the number of green plantlets varied from 0 to 8plantlets/Petri dish (an average of 1.5 plantlets/Petri dish)depending on the genotype. The spontaneous rediploidization rate obtained was 25% in isolated microspore.

Experimental and numerical studies on concrete encased embossments of steel strips under shear action for composite slabs with profiled steel decking

Noémi Seres,László Dunai 국제구조공학회 2011 Steel and Composite Structures, An International J Vol.11 No.1

The subject of the ongoing research work is to analyze the composite action of the structural elements of composite slabs with profiled steel decking by experimental and numerical studies. The mechanical and frictional interlocks result in a complex behaviour and failure under horizontal shear action. This is why the design characteristics can be determined only by standardized experiments. The aim of the current research is to develop a computational method which can predict the behaviour of embossed mechanical bond under shear actions, in order to derive the design characteristics of composite slabs with profiled steel decking. In the first phase of the research a novel experimental analysis is completed on an individual concrete encased embossment of steel strip under shear action. The experimental behaviour modes and failure mechanisms are determined. In parallel with the tests a finite element model is developed to follow the ultimate behaviour of this type of embossment, assuming that the phenomenon is governed by the failure of the steel part. The model is verified and applied to analyse the effect of embossment’s parameters on the behaviour. In the extended investigation different friction coefficients, plate thicknesses, heights and the size effects are studied. On the basis of the results the tendencies of the ultimate behaviour and resistance by the studied embossment’s characteristics are concluded.

ARE LUXURY AND FASHION OPPOSITE CONCEPTS? A CROSS COUNTRY EMPIRICAL ANALYSIS

Jean-Noël Kapferer,Pierre Valette-Florence 글로벌지식마케팅경영학회 2019 Global Fashion Management Conference Vol.2019 No.07

CROSS NATIONAL RE-INVESTIGATION OF CONSUMER INVOLVEMENT FOR CORPORATE AND PRODUCT ADS: EVIDENCE FROM FRANCE, PAKISTAN AND USA

Rohail Ashraf,Noël Albert,Dwight Merunka 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

Increasing consumer scepticism about corporate behaviour has led companies to actively manage and advertise their corporate brands. However, it remains unclear how receptive consumers across different markets have been to such efforts. This study examines (i) consumer involvement (a motivational state activated by personal relevance of a stimuli) levels and (ii) processes with corporate advertising to demonstrate differences and similarities with product advertising across multiple markets. Using between subject experimental design, the study was conducted across three different markets with varying degrees of economic development i.e. USA (n = 285), France (n = 217) and Pakistan (n=311). Results demonstrate that consumer involvement levels with corporate advertising is higher in USA than in France and Pakistan. American consumers tend to be involved with corporate advertising as much as they are with product advertising, whereas, French and Pakistani consumers are more involved with product advertising. Apart from differences in involvement levels, study findings demonstrate substantial similarities in involvement processing and how they impact ad attitude and consumers’ behaviour across both the markets. The study holds importance for corporate communication and product managers with cross national responsibilities as it establishes differences and similarities for corporate and product ad involvement across developed and emerging markets.

Directional Solidification Processing on CET in Al-Based Alloys

정혜진,N. Mangelinck-Noël,H. Nguyen-Thi,B. Billia,G. Reinhart,A. Buffet 대한금속·재료학회 2009 METALS AND MATERIALS International Vol.15 No.1

The control of the transition from columnar to equiaxed (CET) dendrite microstructure is an important point to obtain desired final properties of industrial products. The objective is to understand how the formation and the evolution of the CET are influenced by the processing parameters and natural convection with Al - 3.5 wt.% Ni and Al - 7.0 wt.% Si alloys. Various experiments are carried out in a Bridgman furnace for which the thermal gradient and pulling velocity can be independently controlled. We concentrate our interest on the CET tendency, added particle effects and the evolution of dendrite grain structures under different test conditions. On the other hand, in-situ and real time observation of the solid-liquid interface is used to reveal the dynamics of the phenomena that occur, thus deepening our understanding. To achieve this objective, Synchrotron X-ray Radiography has been designed and performed at the European Synchrotron Radiation Facility. The control of the transition from columnar to equiaxed (CET) dendrite microstructure is an important point to obtain desired final properties of industrial products. The objective is to understand how the formation and the evolution of the CET are influenced by the processing parameters and natural convection with Al - 3.5 wt.% Ni and Al - 7.0 wt.% Si alloys. Various experiments are carried out in a Bridgman furnace for which the thermal gradient and pulling velocity can be independently controlled. We concentrate our interest on the CET tendency, added particle effects and the evolution of dendrite grain structures under different test conditions. On the other hand, in-situ and real time observation of the solid-liquid interface is used to reveal the dynamics of the phenomena that occur, thus deepening our understanding. To achieve this objective, Synchrotron X-ray Radiography has been designed and performed at the European Synchrotron Radiation Facility.

Influence of receiver bandwidth on MRI artifacts caused by orthodontic brackets composed of different alloys

Abdala-Junior Reinaldo,No-Cortes Juliana,Arita Emiko Saito,Ackerman Jerome L.,da Silva Renan Lúcio Berbel,Kim Jun Ho,Cortes Arthur Rodriguez Gonzalez 대한영상치의학회 2021 Imaging Science in Dentistry Vol.51 No.4

Purpose: The aim of this in vitro study was to assess the role of bandwidth on the area of magnetic resonance imaging (MRI) artifacts caused by orthodontic appliances composed of different alloys, using different pulse sequences in 1.5 T and 3.0 T magnetic fields. Materials and Methods: Different phantoms containing orthodontic brackets (ceramic, ceramic bracket with a stainless-steel slot, and stainless steel) were immersed in agar gel and imaged in 1.5 T and 3.0 T MRI scanners. Pairs of gradient-echo (GE), spin-echo (SE), and ultrashort echo time (UTE) pulse sequences were used differing in bandwidth only. The area of artifacts from orthodontic devices was automatically estimated from pixel value thresholds within a region of interest (ROI). Mean values for similar pulse sequences differing in bandwidth were compared at 1.5 T and 3.0 T using analysis of variance. Results: The comparison of groups revealed a significant inverse association between bandwidth values and artifact areas of the stainless-steel bracket and the self-ligating ceramic bracket with a stainless-steel slot (P<0.05). The areas of artifacts from the ceramic bracket were the smallest, but were not reduced significantly in pulse sequences with higher bandwidth values (P<0.05). Significant differences were also observed between 1.5 T and 3.0 T MRI using SE and UTE, but not using GE 2-dimensional or 3-dimensional pulse sequences. Conclusion: Higher receiver bandwidth might be indicated to prevent artifacts from orthodontic appliances in 1.5 T and 3.0 T MRI using SE and UTE pulse sequences.

Discussion: Statistical models and methods for dependence in insurance data

Ingrid Van Keilegom,Noël Veraverbeke 한국통계학회 2011 Journal of the Korean Statistical Society Vol.40 No.2

Effect of a 12-week training program on the anthropometric and physiological profiles of some participants registered in a fitness center in Douala, Cameroon

Peguy Brice Assomo Ndemba,Clarisse Noël Ayina Ayina,Wiliam Richard Guessogo,Jerson Mekoulou Ndongo,Rita Ornella Ghontchouang Kamnang,Claude Elysée Bika Lele,Samuel Honoré Mandengue,Laurent Serge Etoun 한국운동재활학회 2020 JER Vol.16 No.4

Banded Iron Formations in Congo: A Review

Yarsé Brodivier Mavoungou(Yarsé Brodivier Mavoungou ),Anthony Temidayo Bolarinwa(Anthony Temidayo Bolarinwa ),Noël Watha-Ndoudy(Noël Watha-Ndoudy ),Georges Muhindo Kasay(Georges Muhindo Kasay ) 대한자원환경지질학회 2023 자원환경지질 Vol.56 No.6

In the Republic of Congo, Banded iron formations (BIFs) occur in two areas: the Chaillu Massif and the Ivindo Basement Complex, which are segments of the Archean Congo craton outcropping in the northwestern and southwestern parts of the country. They show interesting potential with significant mineral resources reaching 2 Bt and grades up to 60% Fe. BIFs consist mostly of oxide-rich facies (hematite/magnetite), but carbonate-rich facies are also highlighted. They are found across the country within the similar geological sequences composed of amphibolites, gneisses and greenschists. The Post-Archean Australian Shale (PAAS)-normalized patterns of BIFs show enrichment in elements such as SiO2, Fe2O3, CaO, P2O5, Cr, Cu, Zn, Nb, Hf, U and depletion in TiO2, Al2O3, MgO, Na2O, K2O, Sc, Th, Ba, Zr, Rb, Ni, V. REE diagrams show slight light REEs (rare earth elements; LREEs) compared to heavy REEs (HREEs), and positive La and Eu anomalies. The lithological associations, as well as the very high (Eu/Eu*)SN ratios> 1.8 shown by the BIFs, suggest that they are related to Algoma-type BIFs. The positive correlations between Zr and TiO2, Al2O3, Hf suggest that the contamination comes mainly from felsic rocks, while the absence of correlations between MgO and Cr, Ni argues for negligeable contributions from mafic sources. Pr/Pr* vs. Ce/Ce* diagram indicates that the Congolese BIFs were formed in basins with redox heterogeneity, which varies from suboxic to anoxic and from oxic to anoxic conditions. They were formed through hydrothermal vents in the seawater, with relatively low proportions of detrital inputs derived from igneous sources through continental weathering. Some Congolese BIFs show high contents in Cr, Ni and Cu, which suggest that iron (Fe) and silicon (Si) have been leached through hydrothermal processes associated with submarine volcanism. We discussed their tectonic setting and depositional environment and proposed that they were deposited in extensional back-arc basins, which also recorded hydrothermal vent fluids.

Hydroxychloroquine, Interleukin-6 Receptor Antagonists and Corticoid Treatments of Acute COVID-19 Infection: Psychiatric Symptoms and Mental Disorders 4 Months Later

Matthieu Gasnier(Matthieu Gasnier ),Walid Choucha(Walid Choucha ),David Montani(David Montani ),Nicolas Noël(Nicolas Noël ),Céline Verstuyft(Céline Verstuyft ),Francois Radiguer(Francois Radiguer ),Xa 대한정신약물학회 2022 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.20 No.4

Objective: Psychiatric symptoms and mental disorders are common after Coronavirus Disease-19 (COVID-19). Some drugs used to treat acute COVID-19 have psychiatric side effects. We assessed the psychiatric symptoms and mental disorders of patients treated for acute COVID-19 with hydroxychloroquine (HCQ), interleukin-6 receptor antagonists (anti-IL-6), and corticoids (CTC). Methods: We evaluated 177 patients in a day hospital 4 months after acute infection. Results: In a multivariate analysis, HCQ was associated with significant anxiety symptoms (odds ratio [OR] = 5.9, 95% confidence interval [95% CI] = 1.8−20.0, p = 0.003) and mental disorders (OR = 4.1, 95% CI = 1.2−13.9, p = 0.02). In a bivariate analysis with propensity matched cohorts, HCQ was associated with significant anxiety symptoms (9 patients [50.0%] with significant symptoms in the HCQ group versus 15 [20.1%] in the control group, OR = 3.8, 95% CI = 1.3−11.3, p = 0.01). Anti-IL-6 and CTC were not associated with significant psychiatric symptoms or mental disorders. Conclusion: We recommend monitoring psychiatric symptoms, especially anxiety, in patients treated with HCQ during COVID-19 infection. Further studies with larger samples and prospective assessments are needed to confirm our results.